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[rez-in] /ˈrɛz ɪn/
any of a class of nonvolatile, solid or semisolid organic substances, as copal or mastic, that consist of amorphous mixtures of carboxylic acids and are obtained directly from certain plants as exudations or prepared by polymerization of simple molecules: used in medicine and in the making of varnishes and plastics.
a substance of this type obtained from certain pines; rosin.
verb (used with object)
to treat or rub with resin.
Origin of resin
1350-1400; Middle English < Old French resine < Latin rēsīna, probably < a non-IE language; compare Greek rhētī́nē pine resin, from a related source
Related forms
resinlike, adjective
Can be confused
resin, rosin.


[rez-in] /ˈrɛz ɪn/
a male given name. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for resin


any of a group of solid or semisolid amorphous compounds that are obtained directly from certain plants as exudations. They are used in medicine and in varnishes
any of a large number of synthetic, usually organic, materials that have a polymeric structure, esp such a substance in a raw state before it is moulded or treated with plasticizer, stabilizer, filler, etc Compare plastic (sense 1)
(transitive) to treat or coat with resin
Derived Forms
resinous, adjective
resinously, adverb
resinousness, noun
Word Origin
C14: from Old French resine, from Latin rēsīna, from Greek rhētinē resin from a pine
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for resin

late 14c., from Old French resine "gum, resin," and directly from Latin resina "resin," from Greek rhetine "resin of the pine," of unknown origin.

Online Etymology Dictionary, © 2010 Douglas Harper
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resin in Medicine

resin res·in (rěz'ĭn)

  1. Any of numerous clear to translucent yellow or brown, solid or semisolid, viscous substances of plant origin, such as copal, rosin, and amber.

  2. Any of numerous physically similar polymerized synthetics or chemically modified natural resins including thermoplastic materials and thermosetting materials.

  3. Rosin.

  4. A precipitate formed by the addition of water to certain tinctures.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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resin in Science
  1. Any of numerous clear or translucent, yellowish or brownish substances that ooze from certain trees and plants. Resins are used in products such as varnishes, lacquers, adhesives, plastics, and drugs. Balsam is a resin.

  2. Any of various artificial substances, such as polyurethane, that have similar properties to natural resins and are used to make plastics.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Slang definitions & phrases for resin


Related Terms

kiss the canvas

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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