'Quinoidine' definitions:

Definition of 'Quinoidine'

From: GCIDE

Quinoidine \Qui*noid"ine\, n. [Quinine + -oid.] (Med. Chem.) A brownish resinous substance obtained as a by-product in the treatment of cinchona bark. It consists of a mixture of several alkaloids. [Written also chinoidine.] [1913 Webster]