What does "scad" mean?

Scad: (a) A small carangoid fish (Trachurus saurus) abundant on the European coast, and less common on the American. The name is applied also to several allied species. (b) The goggler; -- called also big-eyed scad. See Goggler. (c) The friar skate. [Scot.] (d) The cigar fish, or round robin.