lupininChem.|ˈl(j)uːpɪnɪn| Also -ine. [ad. F. lupinine, f. L. lupīn-us, lupine n.: see -in.] A bitter glucoside obtained from the seeds of Lupinus albus. 1839Ure Dict. Arts, etc., Lupinine.1865Watts Dict.Chem., Lupinin, a bitter non-nitrogenous substance obtained from lupine-seeds.