Blacksmith \Black"smith`\, n. [Black (in allusion to the color of the metal) + smith. Cf. {Whitesmith}.] 1. A smith who works in iron with a forge, and makes iron utensils, horseshoes, etc. The blacksmith may forge what he pleases. --Howell. 2. (Zo["o]l.) A fish of the Pacific coast ({Chromis, or Heliastes, punctipinnis}), of a blackish color.