Definition of yellowtail

• n. - Any one of several species of marine carangoid fishes of the genus Seriola; especially, the large California species (S. dorsalis) which sometimes weighs thirty or forty pounds, and is highly esteemed as a food fish; -- called also cavasina, and white salmon.
• n. - The mademoiselle, or silver perch.
• n. - The menhaden.
• n. - The runner, 12.
• n. - A California rockfish (Sebastodes flavidus).
• n. - The sailor's choice (Diplodus rhomboides).