Marlin \Mar"lin\, n. (Zool.) The American great marbled godwit ({Limosa fedoa}). Applied also to the red-breasted godwit ({Limosa haematica}). [1913 Webster] 2. [from marlin spike, the shape of its bill.] Any of several marine billfishes of the genera {Makaira} and {Tetrapturus}, popular as game in sport fishing. [PJC] {Hook-billed marlin}, a curlew. [1913 Webster]