The Collaborative International Dictionary
Bilamellate
Bilamellate \Bi*lam"el*late\, Bilamellated \Bi*lam"el*la`ted\, a. [Pref. bi- + lamellate.] (Bot.) Formed of two plates, as the stigma of the Mimulus; also, having two elevated ridges, as in the lip of certain flowers.
Wiktionary
bilamellate
a. 1 (context botany English) Formed of two plates, or lamellae. 2 (context botany English) Having two elevated ridges, as in the lip of certain flowers.