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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.
Also rosin . a substance of this type obtained from certain pines.
verb (used with object)
to treat or rub with resin.
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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, etcCompare plastic (def. 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.
Any of various artificial substances, such as polyurethane, that have similar properties to natural resins and are used to make plastics.