Crossword clues for polymer
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Polymer \Pol"y*mer\, n. [See Polymeric.] (Chem.) Any one of two or more substances related to each other by polymerism; specifically, a substance produced from another substance by chemical polymerization. [Formerly also written polymere.]
Douglas Harper's Etymology Dictionary
n. 1 (context organic chemistry English) A long or larger molecule consisting of a chain or network of many repeating units, formed by chemical bond together many identical or similar small molecules called monomers. A polymer is formed by polymerization, the joining of many monomer molecules. 2 A material consisting of such polymer molecules.
n. a naturally occurring or synthetic compound consisting of large molecules made up of a linked series of repeated simple monomers
Polymer is used by a number of Google services and websites, including YouTube Gaming and Google I/O websites.
A polymer (; Greek poly-, "many" + -mer, "parts") is a large molecule, or macromolecule, composed of many repeated subunits. Because of their broad range of properties, both synthetic and natural polymers play an essential and ubiquitous role in everyday life. Polymers range from familiar synthetic plastics such as polystyrene to natural biopolymers such as DNA and proteins that are fundamental to biological structure and function. Polymers, both natural and synthetic, are created via polymerization of many small molecules, known as monomers. Their consequently large molecular mass relative to small molecule compounds produces unique physical properties, including toughness, viscoelasticity, and a tendency to form glasses and semicrystalline structures rather than crystals.
The term "polymer" derives from the ancient Greek word πολύς (polus, meaning "many, much") and μέρος (meros, meaning "parts"), and refers to a molecule whose structure is composed of multiple repeating units, from which originates a characteristic of high relative molecular mass and attendant properties. The units composing polymers derive, actually or conceptually, from molecules of low relative molecular mass. The term was coined in 1833 by Jöns Jacob Berzelius, though with a definition distinct from the modern IUPAC definition. The modern concept of polymers as covalently bonded macromolecular structures was proposed in 1920 by Hermann Staudinger, who spent the next decade finding experimental evidence for this hypothesis.
Polymers are studied in the fields of biophysics and macromolecular science, and polymer science (which includes polymer chemistry and polymer physics). Historically, products arising from the linkage of repeating units by covalent chemical bonds have been the primary focus of polymer science; emerging important areas of the science now focus on non-covalent links. Polyisoprene of latex rubber and the polystyrene of styrofoam are examples of polymeric natural/biological and synthetic polymers, respectively. In biological contexts, essentially all biological macromolecules—i.e., proteins (polyamides), nucleic acids (polynucleotides), and polysaccharides—are purely polymeric, or are composed in large part of polymeric components—e.g., isoprenylated/lipid-modified glycoproteins, where small lipidic molecules and oligosaccharide modifications occur on the polyamide backbone of the protein.
The simplest theoretical models for polymers are ideal chains.
Tonedeff had released 3 EPs, Glutton, Demon, and Hunter, between 2013 and 2015, later saying that most songs included on these would be consolidated with a fourth EP entitled Phantom which would be included on the finished product, his second album, Polymer. In 2016, he finally announced via a Livestream chat on Facebook that the album would be released on July 8, 2016, available in multiple packages such as the Polydisc and Polymorph editions.
Usage examples of "polymer".
The second new polymer man got clewed in to Mining and Metallurgy on an emergency job when it was discovered that he had worked summers on a barytes washer in Missouri.
He talked endlessly about his super polymer that when super cooled allowed for state-of-the-art piezoelectric micromotion control.
In using a range of metals and polymers, the coefficient of inharmonicity is proportional to the modulus of elasticity divided by the square of the density.
As Harvath was sliding his gloved hands through the specially designed fittings of the black polymer climbing cups, Rick Morrell crawled over.
Glastic: an ultrahigh molecular weight, thermosetting polymer of boron oxide that has the colloidal properties of glass with the ductility of plastic.
With the assembly complete, the Weisanens carefully sprayed everything, inside and out, from cylinders which Silbert recognized as containing one of the standard fluorocarbon polymers used for sealing unfindable leaks in spaceships.
The red-tinted visors were composed of electrochemical polymers and connected to a passive night sight that intensified ambient light to permit one-color night vision.
Aside from your own genetic and organic microbial matter, in the form of shed skin and faecal material, there are all the polymer and long-chain molecules not naturally occurring here that are present in your clothing and your hygiene products.
His mouth was awash in regurgitated Dylar foam, half chewed tablets, flyspeck shards of polymer.
How can haphazard nubbiness of grooves pressed into synthetic polymer, read and converted into equivalent electric current, passed through an electromagnet that isomorphically excites speaker paper, sucking it back and forth in a pulsing wave that sets up a sympathetic vibration in thin, skin membrane tickling electrical nerve-bursts simulate not only all the instruments of the orchestra but this most cerebrally self-invested device, the hammer-struck, vibrating string?
Later, as confirmation, his course in polymer theory was taught by Professor-Doctor Laszlo Jamf, who was latest in the true succession, Liebig to August Wilhelm von Hofmann, to Herbert Canister to Laszlo Jamf, a direct chain, cause-and-effect.
They got the first clue from the fact that every one of the sixteen types of packages--whether of a clear polymer wrapping that was curiously both brittle and tough, or a metal canister--bore a label made of some paperlike material, each with a picture of something--presumably the contents--in a bowl.
Most of them were walking, but others pedaled bicycles with tires made from rubberized seafoam polymer.
Neptunian polymer armor, gleaming like statues of blue glass, and seething with strands and globules of complex brain matter and neurocircuitry throughout their lengths, visible beneath the semitranslucent skin.
When studying her own scans, months ago, she had seen the sheetlike structures under her diaphragm and suspected she knew what they were, powerful polymer batteries, but she could not remember how to utilize them, or even what they were for.