resin

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res·in / ˈrezən/ • n. a sticky flammable organic substance, insoluble in water, exuded by some trees and other plants (notably fir and pine).Compare with gum1 (sense 1). ∎  (also syn·the·tic res·in) a solid or liquid synthetic organic polymer used as the basis of plastics, adhesives, varnishes, or other products.• v. (res·ined, res·in·ing) [tr.] [usu. as adj.] (resined) rub or treat with resin: resined canvas.DERIVATIVES: res·in·ous / ˈrezənəs/ adj.

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