Definitions
1.NounAny of certain species of Caranx of gamefish, including C. latus and C. crysos, but especially Caranx lugubris.
2.NounCertain beggarticks (Bidens spp.), especially Bidens pilosa.
3.NounLarva of a turnip sawfly (Athalia rosae)
4.NounSphalerite.
5.NounA tufted or ring-necked scaup duck (Aythya collaris).
6.NounAlternative form of blackjack.
7.NounUsed other than figuratively or idiomatically: see black, jack.