'Macrura' definitions:

Definition of 'Macrura'

From: GCIDE

Macrura \Ma*cru"ra\, n. pl. [NL., fr. Gr. ? long + ? tail.] (Zool.) A subdivision of decapod Crustacea, having the abdomen largely developed. It includes the lobster, prawn, shrimp, and many similar forms. Cf. Decapoda. [1913 Webster]