D defs.my
Entry 1 sense Webster, 1913

Astacus

· As·ta·cus · IPA
01 n. A genus of crustaceans, containing the crawfish of fresh-water lobster of Europe, and allied species of western North America. See Crawfish.
  1. 1.
    A genus of crustaceans, containing the crawfish of fresh-water lobster of Europe, and allied species of western North America. See Crawfish.(Zool.) See: Crawfish