10 results for: polymer

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Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

pol·y·mer

Audio Help [pol-uh-mer] Pronunciation Key

–noun Chemistry.

1.	a compound of high molecular weight derived either by the addition of many smaller molecules, as polyethylene, or by the condensation of many smaller molecules with the elimination of water, alcohol, or the like, as nylon.

2.	a compound formed from two or more polymeric compounds.

3.	a product of polymerization.

Compare monomer.

[Origin: 1865–70; < Gk polymers having many parts. See poly-, -mer

]

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

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polymer

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American Heritage Dictionary - Cite This Source - Share This

pol·y·mer Audio Help (pŏl'ə-mər) Pronunciation Key
n. Any of numerous natural and synthetic compounds of usually high molecular weight consisting of up to millions of repeated linked units, each a relatively light and simple molecule.

[Greek polumerēs, consisting of many parts : polu-, poly- + meros, part; see (s)mer-² in Indo-European roots.]

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

Online Etymology Dictionary - Cite This Source - Share This
polymer

1866, probably from Ger. Polymere (Berzelius, 1830), from Gk. polymeres "having many parts," from polys "many" (see poly-) + meros "part."

WordNet - Cite This Source - Share This

polymer
noun
a naturally occurring or synthetic compound consisting of large molecules made up of a linked series of repeated simple monomers

The American Heritage Science Dictionary - Cite This Source - Share This

polymer Audio Help (pŏl'ə-mər) Pronunciation Key
Any of various chemical compounds made of smaller, identical molecules (called monomers) linked together. Some polymers, like cellulose, occur naturally, while others, like nylon, are artificial. Polymers have extremely high molecular weights, make up many of the tissues of organisms, and have extremely varied and versatile uses in industry, such as in making plastics, concrete, glass, and rubber. ◇ The process by which molecules are linked together to form polymers is called polymerization (pŏl'ə-lĭm'ər-ĭ-zā'shən).

The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

American Heritage New Dictionary of Cultural Literacy, Third Edition - Cite This Source - Share This
polymer [(pol-uh-muhr)]

In chemistry, a long molecule made up of a chain of smaller, simpler molecules.

Note: Proteins and many carbohydrates, such as cellulose, are polymers. Plastics are also polymers.

[Chapter:] Physical Sciences and Mathematics

American Heritage Stedman's Medical Dictionary - Cite This Source - Share This

pol·y·mer (pl-mr)
n.

Any of numerous compounds of usually high molecular weight and consisting of up to millions of repeated linked units, each a relatively light and simple molecule.

Merriam-Webster's Medical Dictionary - Cite This Source - Share This

Main Entry: poly·mer
Pronunciation: 'päl-&-m&r
Function: noun
: a chemical compound or mixture of compounds formed by polymerization and consisting essentially of repeating structural units

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

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.]

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