Webster 1913 Edition
resina; cf. Gr.
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
☞ 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 they consist primarily of polymerized small molecules having carboxylic groups. Copal, mastic, guaiacum, 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 form balsams, or oleoresins. They are also used in making varnishes.
a fossil resin resembling copal, occuring in blue clay at Highgate, near London.–
a low composite shrub (
Euryops speciosissimus) of South Africa, having smooth pinnately parted leaves and abounding in resin.
Webster 1828 Edition
s as z. [L., Gr. to flow.]
An inflammable substance, hard when cool, but viscid when heated, exuding in a fluid state from certain kinds of trees, as pine, either spontaneously or by incision. Resins are soluble in oils and alcohol, and are said to be nothing but oils concreted by combination with oxygen. Resins differ from gums, which are vegetable mucilage; and they are less sweet and odorous than balsams.
resin (countable and uncountable, plural resins)
- A viscous hydrocarbon secretion of many plants, particularly coniferous trees.
- Any of various yellowish viscous liquids or soft solids of plant origin; used in lacquers, varnishes and many other applications; chemically they are mostly hydrocarbons, often polycyclic.
- Any synthetic compound of similar properties.
secretion of plants
viscous liquid of plant origin
similar synthetic compound
resin (third-person singular simple present resins, present participle resining, simple past and past participle resined)
- to apply resin
- to do something repeatedly