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Longman Dictionary of Contemporary English
radioactive
adjective
COLLOCATIONS FROM OTHER ENTRIES
a radioactive substance (=containing a form of energy that can harm people)
▪ People who work with radioactive substances are subject to strict regulations.
radioactive dating
radioactive fallout
▪ protection against radioactive fallout
radioactive material
▪ harmful radioactive material
radioactive waste
radioactive/nuclear waste
▪ plans for the safe transportation of radioactive waste
COLLOCATIONS FROM CORPUS
■ ADVERB
highly
▪ Finding ways of soothing political opposition to the dumping of highly radioactive waste could prove more difficult than solving the scientific problems.
▪ The third isotope of hydrogen, hydrogen-3 or tritium, is highly radioactive and has a very short half-life.
▪ A Green Party spokesman said that spent fuel rods are highly radioactive and potentially lethal.
▪ Fuel rods typically last from two to six years and are highly radioactive.
▪ This is because higher level waste is initially rich in short-lived isotopes which are highly radioactive.
▪ The residual plutonium is apparently being held in the form of highly radioactive waste.
▪ The process leaves behind a highly radioactive liquor as a waste product.
▪ In its native state it is a mixture of highly radioactive uranium-235 and less active U-238.
■ NOUN
contamination
▪ The odds against radioactive contamination, Nasa told the court, are 2,500 to 1.
▪ Traces of radioactive contamination were found on the flask when it was being washed after arrival.
▪ Uncertainty and scientific dispute is compounded by the fact that radioactive contamination is different from many other types of pollution.
decay
▪ Like all types of radioactive decay the process takes place at a constant rate, independent of all environmental conditions.
▪ The ratios change over time as potassium undergoes radioactive decay and emits argon gas.
▪ One becquerel is equal to one radioactive decay per second.
▪ Antimatter is also produced by radioactive decay.
▪ This is a dating method based on the radioactive decay of isotopes of uranium.
▪ Helium is also made by radioactive decay of uranium and thorium, both of which decay by emission of alpha particles.
▪ This instability leads to radioactive decay of C at a regular rate.
▪ This helium produced by radioactive decay, called radiogenic helium, consists of pure 4He.
dust
▪ In the uranium mines, workers breathe in radioactive dust as they dig out the metal ore which contains the valuable element.
▪ As the fire shed its microscopic radioactive dust over their houses and gardens, they continued to walk about, blissfully unaware.
▪ How much radioactive dust is in my body?
▪ The humans are slowly dying because of the radioactive dust caused by a human war.
▪ Officials have still to decide how the radioactive dust and nuclear fuel inside should be cleaned up.
▪ The doctors there know all about uranium and radioactive dust.
▪ A Department of Environment spokesman said that 1 gram of radioactive dust had been released.
▪ It feels like time spent on the moon, kicking up clouds of radioactive dust.
fallout
▪ The study linked the increase directly to the radioactive fallout from Chernobyl.
▪ I heard new vocabulary: nuclear bomb, radioactive fallout, bomb shelter.
▪ These costs linger like radioactive fallout, contaminating core beliefs and inspiring additional replicative actions that demand further minimization.
fuel
▪ The reactor core erupted in a gigantic explosion, spewing enormous amounts of heat and disintegrated radioactive fuel into the atmosphere.
▪ Millstone has removed all the radioactive fuel in the reactor to permit repairs.
iodine
▪ Outside, radioactive iodine was regularly released into the atmosphere over the following month.
▪ This was said to be because of the risk of radioactive iodine emitted during the fire getting into people's thyroid glands.
▪ The radioactive iodine released does not satisfy the second and fourth conditions.
isotope
▪ The new ingredient in the assessment of how many deaths the Windscale cloud caused is the radioactive isotope, polonium 210.
▪ Electricity produced by radioactive isotopes, strontium 90, polonium 210, by thermoelectric energy conversion.
▪ The simplest radioactive methods are based on decay of a radioactive isotope into a stable one.
▪ Every radioactive isotope provides an independent clock for measuring geological time.
▪ She could hear the adjacent streetlight sizzling like a radioactive isotope.
▪ Asteroids contain a variety of rare radioactive isotopes of potassium, uranium, thorium, rubidium, and so on.
▪ Increasing the helium-3 supply would mean scaling up the production of the dangerous radioactive isotope tritium.
leak
▪ The transporters are designed to withstand accidents and until recently the Govenrment ruled out any possibility of a radioactive leak.
▪ The events included radioactive leaks, unplanned shutdowns and component failures, as well as vandalism, drug abuse and unauthorized use of firearms.
material
▪ Originally this means of disposal was performed as an experiment to assess what happened to the radioactive material.
▪ A conventional bomb could scatter radioactive material over a large area.
▪ Radiation is released during the handling and treatment of radioactive materials and as they are transported to and from nuclear sites.
▪ Two other canisters bearing labels for radioactive material were also found, but preliminary tests failed to detect any radioactivity.
▪ This would have resulted in more radioactive material being released.
▪ There is a danger of leakages and the deliberate dumping of radioactive material, with potentially catastrophic results for the environment.
▪ So far environmental lobbies have been extremely reluctant to allow radioactive materials to be flown in a chemical rocket.
▪ As I said earlier, the safety of the carriage of radioactive material is paramount.
substance
▪ Many more will have suffered from cancers brought on by one of the radioactive substances released.
▪ The half-life of a radioactive substance is the time interval taken for the radiant species present to lose half its radioactivity.
▪ Low-level waste is primarily the product of industrial and medical use of radioactive substances.
▪ This has been particularly useful in the nuclear industry where highly corrosive toxic and radioactive substances cause severe maintenance problems.
▪ The activity of a radioactive substance is the number of nuclei decaying per second.
▪ They've been injected with plutonium in an effort to find out exactly how the radioactive substance affects people.
waste
▪ The thought of thousands of tonnes of radioactive waste being buried under their favourite stretch of countryside filled local residents with horror.
▪ The nations augmented the prohibitions in 1993 with a voluntary moratorium on disposing of low-level radioactive waste.
▪ Agreement was only reached following a fierce debate over the question of radioactive waste.
▪ The agency ruled Thursday that the repository in salt beds near Carlsbadabout 300 miles southeast of Albuquerquecould safely contain radioactive waste.
▪ Sites are being selected for final disposal of radioactive waste.
▪ These secretive facilities house the deadly legacies of the Cold War: nuclear weapons, radioactive waste and toxic chemicals.
▪ This meets the growing need to improve geoscience knowledge relevant to strategies for subsurface disposal of hazardous and radioactive wastes.
▪ The kind of radioactive waste they are handling out there is the most dangerous kind.
EXAMPLES FROM OTHER ENTRIES
radioactive decay
▪ a highly radioactive material
EXAMPLES FROM CORPUS
▪ But it has its very own radioactive quality, a kind of nuclear winter of the soul.
▪ But potassium itself is one of the most important radioactive heat sources in the planets.
▪ One becquerel is equal to one radioactive decay per second.
▪ Originally this means of disposal was performed as an experiment to assess what happened to the radioactive material.
▪ The agency ruled Thursday that the repository in salt beds near Carlsbadabout 300 miles southeast of Albuquerquecould safely contain radioactive waste.
▪ These elements are major sources of radioactive heating.
▪ This was the thorny question of what would happen eventually to the reactor's residue of radioactive waste.
The Collaborative International Dictionary
radioactive

radioactive \ra`di*o*ac"tive\ (r[=a]`d[i^]*[-o]*[a^]k"t[i^]v), a. [Radio- + active.]

  1. (Physics) Capable of luminescence under the action of cathode rays, X rays, or any of the allied forms of radiation. [obsolete]

  2. (Physics) of, exhibiting, or caused by radioactivity.

Douglas Harper's Etymology Dictionary
radioactive

1898, from French radio-actif, coined by Pierre and Marie Curie from radio-, comb. form of Latin radius (see radiation) + actif "active" (see active).

Wiktionary
radioactive

a. Exhibiting radioactivity.

WordNet
radioactive

adj. exhibiting or caused by radioactivity; "radioactive isotope"; "radioactive decay"; "radioactive fallout" [ant: nonradioactive]

Wikipedia
Radioactive (disambiguation)

Radioactive describes something undergoing radioactive decay, the process by which an unstable atomic nucleus emits radiation.

Radioactive may also refer to:

Radioactive (The Firm song)

"Radioactive" is a song by English rock band The Firm. It was the first single released from their eponymous début album The Firm, where it was the fifth track. It was written by Paul Rodgers.

A compact and straightforward rock song from the 1980s, structured with Tony Franklin's fretless bass hook at the beginning, combined with Jimmy Page's guitar scratch on the third line in the verse, Rodgers' reverbed vocal, and followed by a wah pedal inflected guitar solo. Chris Slade plays a steady drum beat throughout. On live performances, the song was introduced with a drum solo from Slade, leading into Franklin's opening bass line. Page utilized his brown 1960s Fender Telecaster guitar featuring a Parsons and White B-string bender on tour with this song.

Their self-titled album, appearing on Atlantic Records, cracked the Billboard Top 20 on the strength of this single. Jimmy Page broke with the past and participated in the recording for the music video and single, the first time he had done both since the late 1960s. Page can be seen miming to the recording with his famous red doubleneck 1971 Gibson EDS-1275 guitar. In March 1985, MTV began heavily promoting the video, although the track was a modest seller, reaching #28 in America and topping the Top Rock Tracks chart for one week. "Radioactive" was also released as a 12" single and limited edition picture disc.

Paul Rodgers stills performs this song during his solo sets and it appears on the 2007 Paul Rodgers: Live In Glasgow DVD.

Radioactive (Kings of Leon song)

"Radioactive" is a song by American rock band Kings of Leon, and was the first single released from their 2010 album Come Around Sundown.

The song, along with its accompanying music video, premiered on September 8 on the Kings' website. The following day, it received its official radio premiere on Australian radio, and debuted on US Alternative Radio on September 13. The song was released on US iTunes on September 14, and released at a later date in remaining countries.

The song was nominated for the 53rd Grammy Awards in two categories: Best Rock Performance by a Duo or Group with Vocals and Best Rock Song. The song is used in the films I Am Number Four and Boyhood.

Radioactive (Yelawolf album)

Radioactive (also known as Radioactive: Amazing and Mystifying Chemical Tricks) is the debut studio album by American rapper Yelawolf; it was released on November 21, 2011, by Shady Records and Interscope Records.

Radioactive (Marina and the Diamonds song)

"Radioactive" is a song by Welsh recording artist Marina and the Diamonds from the deluxe version of her second studio album Electra Heart (2012). It was released on 23 September 2011 as the first promotional single from the record; it preceded the premiere of the official lead single " Primadonna" on 20 March 2012.

Radioactive (Rita Ora song)

"Radioactive" is a song recorded by British recording artist Rita Ora, released as the fourth overall single from her debut studio album, Ora (2012). The single was released on 11 February 2013. The song was co-written by Sia Furler and Greg Kurstin, while the latter also produced the cut.

Radioactive (Imagine Dragons song)

"Radioactive" is a song recorded by American rock band Imagine Dragons for their major-label debut EP Continued Silence and later on their debut studio album, Night Visions (2012), as the opening track. "Radioactive" was first sent to modern rock radio on October 29, 2012, and released to contemporary radio on April 9, 2013. Musically, "Radioactive" is an electronic rock and alternative rock song with elements of dubstep and contains cryptic lyrics about apocalyptic and revolutionist themes; more specifically it's about the world becoming new and breaking free by doing something new.

The song received acclaim from critics, who praised the production, lyrics, and vocals, calling it a highlight on the album. Due to heavy rotation on various commercials and trailers, the song became a sleeper hit, peaking at number three on the US Billboard Hot 100 chart and becoming the band's first top 10 single as well as being the third best selling song in that country. It also broke the record for slowest ascension to the top 5 in chart history and currently holds the record for most weeks spent on the Billboard Hot 100 at 87 weeks. The song has also reached number one in Sweden and in the top 20 in several countries including Australia, Canada, New Zealand and the United Kingdom, becoming Imagine Dragons' most successful single to date. It has since been certified ten times platinum in the USA, making it the one of the best selling singles of all time.

"Radioactive" received two Grammy Awards nominations for Record of the Year and Best Rock Performance, winning the latter. This was Imagine Dragons' first time being nominated. During the broadcast, they presented a remix of the song with their Interscope label-mate, rapper Kendrick Lamar. The remix was later released for purchase on iTunes.

Radioactive (Gene Simmons song)

"Radioactive" is the only single released from the Kiss solo album Gene Simmons. The song is written by Gene Simmons and produced by Simmons and Sean Delaney. Released in 1979, the song was recorded in the spring of 1978. "Radioactive" reached #47 on the Billboard charts during an 8-week run between April and May 1979. When the single was released, a limited-edition red vinyl 45 rpm album was made available.

"Radioactive" features Bob Seger and Aerosmith guitarist Joe Perry. Approximately one minute of the song was edited from the album version for the single, subsequently removing the Prelude, which features musician Janis Ian on vocals.

Usage examples of "radioactive".

The assay involves using a radioactive drug which binds quantitatively to the acetylcholine receptor, the amount of radioactivity bound being proportional to the amount of receptor present.

Khasr ship revealed that its whole substance was a highly unstable allotrope, which, however, was not radioactive.

Montpelier, then fissioned in a purposely ugly way in such a way as to create like hellacious amounts of highly poisonous radioactive wastes, which are mixed with heavy water and specially heated-zirconium-piped through special heavily guarded heated zirconium pipes back down to Montpelier as raw materiel for the massive poisons needed for toxic lithiumization and waste-intenseness and annular fusion.

Youman explained that the standard treatment protocol for tes-ticular cancer was called BEP, a cocktail of three different drugs, bleomycin, etoposide, and cisplatin, and they were so toxic that the nurses wore radioactive protection when handling them.

Consulting the impressive list on a kind of menu pinned to his door, Isaac unhesitatingly chose otorhinolaryngological disease, something which no one could prove he did not have, and was borne off in a sedan chair by two gleeful male nurses for a course of hydrotherapy and massive immersion in radioactive mud.

There is a prevalent misconception that rocks and the fossils they encase are usually dated by such means as carbon-14 or radioactive elements found in rocks.

The blast transformed Jadrack, and the cathedral of the holy prophet Moop , and the town in which it stood, to a fine radioactive dust.

Erosion and overgrazing had produced that desert, not war, though there were mildly radioactive patches all across it.

Linder develops electric current directly from the atomic rays by placing collector electrodes in an evacuated chamber containing the polonium or radioactive phosphorus, etc.

Electricity produced by radioactive isotopes, strontium go, polonium zro, by thermoelectric energy conversion.

She had heard all this, apart from the story of Kolb, at the time of the Carrig affair, when a group of Cyclopean entrepreneurs learned from a failed Corps probationer the location of ZRP Fourteen and its deposits of high-yield radioactives.

And number ninety-nine is naturally radioactive, breaking down to protoactinium by a double emission of alpha particles.

The radioactive stone has somehow enabled your brainperhaps by stimulation of the psychophysical faculty that is rudimentary in all of ushas enabled you to concentrate and convert that diffuse energy into material atoms.

As the camera panned the devastation, in the distance, where the smoke and radioactive cloud had not yet entirely shrouded the earth, the moon rose above the horizon, glowing blood red through the desecrated sky.

If what provoked my own protest was the issue of reverse discrimination, what inflamed the First Things symposiasts was the much more radioactive question of abortion.