\Pin"fish`\, n. [So called from their sharp dorsal
spines.] (Zo["o]l.)
(a) The sailor's choice ({Diplodus, or Lagodon, rhomboides}).
(b) The salt-water bream ({Diplodus Holbrooki}).
Note: Both are excellent food fishes, common on the coast of
      the United States south of Cape Hatteras. The name is
      also applied to other allied species.