black jack

See also: blackjack, Blackjack, and black-jack

English

Noun

black jack (countable and uncountable, plural black jacks)

  1. Alternative spelling of blackjack
  2. Caranx lugubris, a gamefish
  3. Bidens spp., from the family of Asteraceae
  4. A blackjack oak, Quercus marilandica, a small tree
  5. (mining, mineralogy) Sphalerite.
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