from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A food and game fish of the genus Seriola, native to temperate and tropical marine waters.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of several large food and game yellowtail fishes of genus Seriola found in the warm waters of all oceans.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of several amber to coppery fork-tailed warm-water carangid fishes
amber + jack, a fish.(American Heritage® Dictionary of the English Language, Fourth Edition)
From amber (in reference to its color) and jack. (Wiktionary)