The Collaborative International Dictionary
maclurin
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.
Wiktionary
maclurin
n. morintannic acid