Kauri resin \Kauri resin\, gum \gum\, or copal \copal\ A resinous product of the kauri, found in the form of yellow or brown lumps in the ground where the trees have grown. It is used for making varnish, and as a substitute for amber.
kauri resin n : resin of the kauri trees of New Zealand; found usually as a fossil; also collected for making varnishes and linoleum [syn: {kauri}, {kauri copal}, {kauri gum}]