black jack meaning: definition, quotations

black jack

nounalso spelled black-jack

7 senses

Any of certain species of Caranx of gamefish, including C. latus and C. crysos, but especially Caranx lugubris.

Certain beggarticks (Bidens spp.), especially Bidens pilosa.

Obsolete Larva of a turnip sawfly (Athalia rosae)

There is a sort of black caterpillar called a black jack, which is seldom seen; but when they do come, they make terrible havock.1807, Richard Parkinson, The Experienced Farmer, Enlarged and Improved, page 370:

Business, Chemistry, Geography, Geology, Mineralogy, Mining, Natural sciences, Physical sciences Sphalerite.

A tufted or ring-necked scaup duck (Aythya collaris).

Alternative Alternative form of blackjack.

Used other than figuratively or idiomatically: see black, jack.

noun

8 senses

Chemistry, Geography, Geology, Mineralogy, Natural sciences, Physical sciences UK, Obsolete Sphalerite; zincblende.

Obsolete Caramel or burnt sugar, used to colour wines, spirits, ground coffee, etc.

Obsolete A large leather vessel for beer, etc.

Obsolete A water oak or barren oak (Quercus nigra).

Obsolete A native African longshoreman or sailor working on a boat.

A coalfish (Pollachius virens).

A larva of a sawfly of species Athalia rosae (syns. Athalia centifolia, A. spinarum).

Alternative Alternative form of blackjack.