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Medical Term:


Pronunciation: rez'in, roz'


  1. An amorphous, brittle substance consisting of the hardened secretion of various plants, probably derived from a volatile oil and similar to a stearoptene.
  2. A precipitate formed by the addition of water to certain tinctures.
  3. A broad term used to indicate organic substances (often polymeric) insoluble in water; the monomer's subunits are named according to their chemical composition, physical structure, and means of activation or curing, acrylic resin, autopolymer resin.

Synonym(s): rosin

[L. resina]

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