Definitions for: Resin


[n] any of a class of solid or semisolid viscous substances obtained either as exudations from certain plants or prepared by polymerization of simple molecules



Webster (1913) Definition: Res"in (r?z"?n), n. [F. r['e]sine, L. resina; cf. Gr.
"rhti`nh Cf. Rosin.]
Any one of a class of yellowish brown solid inflammable
substances, of vegetable origin, which are nonconductors of
electricity, have a vitreous fracture, and are soluble in
ether, alcohol, and essential oils, but not in water;
specif., pine resin (see Rosin).

Note: Resins exude from trees in combination with essential
oils, gums, etc., and in a liquid or semiliquid state.
They are composed of carbon, hydrogen, and oxygen, and
are supposed to be formed by the oxidation of the
essential oils. Copal, mastic, quaiacum, and colophony
or pine resin, are some of them. When mixed with gum,
they form the gum resins, like asafetida and gamboge;
mixed with essential oils, they frorm balsams, or
oleoresins.

Highgate resin (Min.), a fossil resin resembling copal,
occuring in blue clay at Highgate, near London.

Resin bush (Bot.), a low composite shrub ({Euryops
speciosissimus}) of South Africa, having smooth pinnately
parted leaves and abounding in resin.

Synonyms: rosin

See Also: East India kino, kino gum, Malabar kino, natural resin, organic compound, synthetic resin

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