'Rhamphorhynchus' definitions:

Definition of 'Rhamphorhynchus'

From: GCIDE

Rhamphorhynchus \Rham`pho*rhyn"chus\, n. [NL., fr. Gr. "ra`mfos a beak + ???? snout.] (Paleon.) A genus of pterodactyls in which the elongated tail supported a leathery expansion at the tip. [1913 Webster]