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The Collaborative International Dictionary
Morus tinctoria

Morin \Mo"rin\, n. (Chem.) A yellow crystalline substance ( C15H10O7) of acid properties extracted from fustic ( Chlorophora tinctoria syn. Maclura tinctoria, formerly called Morus tinctoria); -- called also moric acid and natural yellow 8. It is used as a dye for wool, giving a color from lemon yellow through olive to olive brown, depending on the metal with which it is mordanted.

Morus tinctoria

Morintannic \Mo`rin*tan"nic\, a. [NL. Morus fustic + E. tannic.] (Chem.) Pertaining to, or designating, a variety of tannic acid extracted from fustic ( Chlorophora tinctoria, formerly Maclura tinctoria and Morus tinctoria) as a yellow crystalline substance; -- called also maclurin.