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Longman Dictionary of Contemporary English
lava lamp
molten lava (=liquid rock from a volcano)
▪ Her great horsy face had turned the colour of molten lava and her eyes were glittering with fury.
▪ He was airlifted on to the mountain as molten lava threatened to swamp the village of Zaffarana.
▪ Suddenly, the immense wall of molten lava bearing down from Mount Etna on to their doorsteps came to a halt.
▪ Meanwhile, powerful United States Army helicopters continued dropping massive concrete blocks to hinder the lava flow.
▪ Their film shows the steep underwater flow front of a lava flow which was being erupted from a vent on Hawaii itself.
▪ And I bet no man has ever appreciated the lava flow of sensuality so near your ice-perfect surface.
▪ The same is true of lava flows which are actually extruded under water.
▪ In a few rare cases, lava flows on land have taken place just as the magnetic field was undergoing a reversal.
▪ Unfortunately it is not easy - for obvious reasons - to study modern submarine lava flows in their proper environment.
▪ Where the ocean crust is young, lava flows dominate the landscape.
▪ A Plate Tectonic Re-cap Rather a lot has been said in this chapter about the minor details of lava flows.
▪ The feldspars in volcanic lava flows can also be problematic.
▪ As the viscosity increases, the lava flows more slowly and smoothly, not as boisterously as at first.
▪ Although it is one of the most widely-known volcanic rocks, obsidian lava flows are rare.
▪ The lamp, also called the lava lamp, was launched in 1963 but as fashions changed its popularity declined.
▪ Thick rugs, beaded curtains, lava lamps, colored lights.
▪ As the lava reached the surface, much of the water escaped as hot vapor clouds.
▪ For many experts, the unusually heavy and dense lava may continue to be churned out of Etna for a further year.
▪ He is like the Roman sentry who stayed at his post when the volcano erupted and poured lava over him.
▪ Residue fell to the bottom of the sea, and lava later pushed the particles back up.
▪ Since they were erupted so low down, it was not long before the rivers of lava were flowing through inhabited areas.
▪ The underlying molten lava drains back into the crust.
▪ Unfortunately it is not easy - for obvious reasons - to study modern submarine lava flows in their proper environment.
▪ Where the ocean crust is young, lava flows dominate the landscape.
The Collaborative International Dictionary

Lava \La"va\ (l[aum]"v[.a]; 277), n. [It. lava lava, orig. in Naples, a torrent of rain overflowing the streets, fr. It. & L. lavare to wash. See Lave.] The melted rock ejected by a volcano from its top or fissured sides. It flows out in streams sometimes miles in length. It also issues from fissures in the earth's surface, and forms beds covering many square miles, as in the Northwestern United States.

Note: Lavas are classed, according to their structure, as scoriaceous or cellular, glassy, stony, etc., and according to the material of which they consist, as doleritic, trachytic, etc.

Lava millstone, a hard and coarse basaltic millstone from the neighborhood of the Rhine.

Lava ware, a kind of cheap pottery made of iron slag cast into tiles, urns, table tops, etc., resembling lava in appearance.

Douglas Harper's Etymology Dictionary

1750, from Italian (Neapolitan or Calabrian dialect) lava "torrent, stream," traditionally from Latin lavare "to wash" (see lave). Originally applied in Italian to flash flood rivulets after downpours, then to streams of molten rock from Vesuvius. Alternative etymology is from Latin labes "a fall," from labi "to fall." Lava lamp is attested from 1965, also lava light (reg. U.S., 1968, as Lava Lite).


n. 1 The melted rock ejected by a volcano from its crater or fissured sides. 2 (context informal proscribed English) magma. 3 A shade of red, named after the volcanic lava.


n. rock that in its molten form (as magma) issues from volcanos; lava is what magma is called when it reaches the surface

Lava (disambiguation)

Lava is molten volcanic rock or the resulting solid rock after cooling.

Lava may also refer to:

Lava (color)

Lava is a color that is a shade of red. It is named after the color of volcanic lava.

This is the color (color #CF1020, shown at right) of fresh lava pouring out of a volcano.

The first recorded use of lava as a color name in English was in 1892.

Lava (district)

Lava is a district of the City Municipality of Celje and a locality in the northwestern part of the city of Celje. Until 1982, Lava was an independent settlement.

Lava (2001 film)

Lava is a 2001 British black comedy directed by Joe Tucker.

The film competed at the Alexandria International Film Festival, Filmfest Oldenburg, Austin Film Festival and Rome Independent Film Festival in 2000.

Lava (1980 film)

Lava is a 1980 Indian Malayalam film, directed by Hariharan and produced by GP Balan. The film stars Prem Nazir, Jagathy Sreekumar, Prameela and Sathar in lead roles. The film had musical score by G. Devarajan.

Lava (Ramayana)

Lava or Luv ( meaning "particle", Kannada: ಲವ, Telugu: లవుడు, Tamil: இலவன், Malay: Tilawi, Indonesian: Lawa, Khmer: Jupalaks, Lao: Phra Lao, Thai: Phra Lop) and his twin brother Kusha, were the children of Lord Rama and his wife Sita, whose story is recounted in the Hindu epic Ramayana. Kusha was the elder of the two and is said to have wheatish golden complexion like their mother, while Lava had blueish complexion like their father. Lava is purported to have founded Lavapuri, that is, the modern day city of Lahore, which is named after him. The Southeast Asian country Laos and the Thai city Lopburi were both named after him. The Sikarwar Rajputs, Awadhiya (caste) and Leva Patidar are present-day Indo-Aryan ethnic groups who claim to be descendants of Lava. Lava belongs to the Ikshvaku clan or Suryavansh Dynasty of Kshatriyas in ancient India.

Lava (soap)

Lava is a heavy-duty hand cleaner, originally produced in soap bar form, developed by the Waltke Company of St. Louis in 1893.

It is currently manufactured by the WD-40 Company, who acquired the brand from Block Drug in 1999, who acquired it from Procter & Gamble in 1995. Unlike typical hand soaps, Lava contains ground pumice, which gave the soap its name. The soap and pumice combination is intended to scour tar, engine grease, paint, dirt, grime, filth, and similar substances from the skin.

Lava soap is currently available in three forms, a red wrapper bar , a bulk count industrial green wrapper bar , and a liquid form (7.5 oz. pump bottle). The liquid form also contains moisturizers and recently the bar form added moisturizers into its formulation as well. The original Lava (without moisturizers), which was a beige bar, is no longer manufactured.


Lava is the molten rock expelled by a volcano during an eruption. The resulting rock after solidification and cooling is also called lava. The molten rock is formed in the interior of some planets, including Earth, and some of their satellites. The source of the heat that melts the rock within the earth is geothermal energy. When first erupted from a volcanic vent, lava is a liquid usually at temperatures from .

A lava flow is a moving outpouring of lava, which is created during a non-explosive effusive eruption. When it has stopped moving, lava solidifies to form igneous rock. The term lava flow is commonly shortened to lava. Although lava can be up to 100,000 times more viscous than water, lava can flow great distances before cooling and solidifying because of its thixotropic and shear thinning properties.

Explosive eruptions produce a mixture of volcanic ash and other fragments called tephra, rather than lava flows. The word "lava" comes from Italian, and is probably derived from the Latin word labes which means a fall or slide. The first use in connection with extruded magma (molten rock below the Earth's surface) was apparently in a short account written by Francesco Serao on the eruption of Vesuvius between May 14 and June 4, 1737. Serao described "a flow of fiery lava" as an analogy to the flow of water and mud down the flanks of the volcano following heavy rain.

Lava (band)

Lava (established 1977 in Årdal, Norway) is a Norwegian jazz-rock band, known from a series of recordings in the 1980s ( Polydor Records).

Lava (2014 film)

Lava is a 2014 computer-animated musical short film, produced by Pixar Animation Studios. Directed by James Ford Murphy and produced by Andrea Warren, it premiered at the Hiroshima International Animation Festival on June 14, 2014, and was theatrically released alongside Pixar's Inside Out on June 19, 2015.

The short is a musical love story that takes place over millions of years. It is set to a song written by Murphy, and was inspired by the "isolated beauty of tropical islands and the explosive allure of ocean volcanoes."

Lava (1985 film)

Lava is a 1985 Bollywood film starring Dimple Kapadia.

Lava (programming language)

Lava is an experimental, visual object-oriented, interpreter-based programming language with an associated programming environment (Lava Programming Environment or LavaPE) that uses structure editors instead of text editors. Only comments, constants, and new identifiers may be entered as text.

Declarations are represented in LavaPE as tree structures whose subtrees may be collapsed or expanded. The properties of the declared Lava entities can be edited through pop-up dialogs.

Although executable code has a traditional text representation in LavaPE, it can be edited only as complete syntactic units, rather than character by character. If you insert a new syntactic construct, it will typically contain "placeholders" (syntactic variables) that can then be replaced by concrete constructs; the latter may in turn contain syntactic variables, etc. LavaPE provides a tool button for every type of syntactic construct, and a button is enabled only if it is syntactically correct to insert the associated construct at the selected place.

Further characteristic properties of Lava and LavaPE include the following:

  • It provides strict syntactic separation of interface (public) and implementation (private) sections of a Lava class.
  • It distinguishes variable "state objects" from constant "value objects"; the latter cannot be modified any longer after creation/initialization.
  • It supports "virtual types": type parameters of classes and packages (families of related classes). As a consequence, undermining of strong type checks by "type casts" is no longer required.
  • It uses recursion and logical quantifiers instead of traditional loop constructs.
  • It uses single assignment; i.e., a value can be assigned to a variable only once within the same branch of a function.
  • It supports refactoring extensively via the LavaPE structure editors.
  • It distinguishes between constituents (sub-objects) and object acquaintances (pointers to independent objects). Copying and deletion of complex objects is largely facilitated in this way.
  • Since release 0.9.0, LavaPE completely prevents inadvertent access to uninitialized variables and null objects already at programming time by complete static initialization checks.

Lava is open source software using the GPL license (see also Lava at the Free Software Foundation and at It currently runs on Microsoft Windows, Linux and Mac OS X platforms.

Usage examples of "lava".

The steepness of the cone suggested viscous lava flows, which on Earth would mean a predominance of andesitic rock.

Normers verified his theory of gravimagnetic rotations, and it turned out, in addition, that on planets of type C Meoli there can exist not tri- but tetraploids of silicon, and on that moon where Arder nearly did himself in there is nothing but lousy lava and bubbles the size of skyscrapers.

And last, that same ill luck brought this liar to Lavas Holding, this man who tempted my cousin and bewitched him.

I heard his shouting continue, all the way down, and then there was a sudden roar of flame as Bubo and the ring hit the lava below.

But, however considerable might be the volume of water contained in the lake, it must eventually be absorbed, because it was not replenished, while the stream of lava, fed from an inexhaustible source, rolled on without ceasing new waves of incandescent matter.

Scenes of angels conquering demons, of the mighty demon dactyl screaming in agony as its own lava poured over it, consuming it.

Maiyer Dek brought in, the dactyl presented suits of armor, demon-forged in the twin lava flows of the throne room, full plated, thick and strong.

At the extreme south end, between Kilchattan and Garroch Head, these conglomerates and sandstones are overlaid by a thick cornstone or dolomitic limestone marking the upper limit of the formation, which is surmounted by the cement-stones and contemporaneous lavas of Lower Carboniferous age.

Taller than the towers, the nacelles of the downed bird rose into view beyond the broken crest of a distant lava butte.

Barrier Range, whose slopes, while not nearly so steep as those of the Upper Spine Mountains, were far drier and composed of a combination of ancient lava and red sandstone.

At the same time a torrent of lava, bursting from the new summit, poured out in long cascades, like water escaping from a vase too full, and a thousand tongues of fire crept over the sides of the volcano.

How like a volcanic crater after the evomition of its lava in a fit of burning cholic, and striving to resettle its angry and tumultuating stomach!

It looks like a terrestrial volcanic rock, perhaps a gabbro, but it seems to have been formed by multiple lava flows, over time.

Cyrus Harding felt the volcanic tufa with which the plain was strewn, and which was but pulverized cinders hardened into solid blocks by time, tremble beneath him, but he could discover no traces of fresh lava.

Cyrus Harding and his companions, before returning to Granite House, desired to ascertain the probable direction this inundation of lava was about to take.