Learn how to say Resinous correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word resin:
1 [mass noun] a sticky flammable organic substance, insoluble in water, exuded by some trees and other plants (notably fir and pine):
clear resin had oozed to the surface, trickled down, and set
Compare with gum1 (sense 1 of the noun).
2 (also synthetic resin) a solid or liquid synthetic organic polymer used as the basis of plastics, adhesives, varnishes, or other products:
epoxy resins frequently cause dermatitis
the chassis is constructed of synthetic resin
verb (resins, resining, resined)
[with object] (usually as adjective resined)
rub or treat with resin:
adjective & noun
late Middle English: from Latin resina; related to Greek rhētinē ‘pine resin’. Compare with rosin