'Requin' definitions:

Definition of 'Requin'

From: GCIDE

Requin \Re"quin\ (r?"kw?n), n. [F., fr. reqiem a Mass sung for the dead. See Requiem.] (Zool.) The man-eater, or white shark (Carcharodon carcharias); -- so called on account of its causing requiems to be sung. [1913 Webster]