| 1. | 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. |
| 2. | a substance of this type obtained from certain pines; rosin. |
| 3. | to treat or rub with resin. |
nē pine resin, from a related source
resin res·in (rěz'ĭn)
n.
Any of numerous clear to translucent yellow or brown, solid or semisolid, viscous substances of plant origin, such as copal, rosin, and amber.
Any of numerous physically similar polymerized synthetics or chemically modified natural resins including thermoplastic materials and thermosetting materials.
Rosin.
A precipitate formed by the addition of water to certain tinctures.
resin (rěz'ĭn) Pronunciation Key
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