D defs.my
Entry 1 sense Webster, 1913

Requin

/(r?"kw?n)/ · Re·quin · IPA /ˈɹi.kwɪn/
01 n. The man-eater, or white shark (Carcharodon carcharias); -- so called on account of its causing requiems to be sung.
  1. 1.
    The man-eater, or white shark (Carcharodon carcharias); -- so called on account of its causing requiems to be sung.(Zool.)