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From Biology-Online Dictionary | Biology-Online Dictionary
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a varnish, consisting of a solution of shell-lac in alcohol, often coloured with gamboge, saffron, or the like; used for varnishing metals, papier-mache, and wood. The name is also given to varnishes made of other ingredients, especially. The tough, solid varnish of the Japanese, with which ornamental objects are made.

Origin: f. Lacre a sort of sealing wax, pg. Lacte, fr. Laca lac. See lac the resin

alternative forms: lacker.