Definition of jackknife fish in English:

jackknife fish

Syllabification: jack·knife fish

noun

A strikingly marked fish with a long, upright dorsal fin that lives among rocks and corals in the warm waters of the western Atlantic.
  • Equetus lanceolatus, family Sciaenidae
More example sentences
  • The jackknife fish is a particularly handsome species, which immediately catches the eye with its long tapering first dorsal fin.
  • The Jackknife fish will comb the sandy bottom looking for worms, crustaceans, and small fish if it is hungry. It may even eat the occasional fireworm.

Definition of jackknife fish in:

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Word of the day dinkum
Pronunciation: ˈdiNGkəm
adjective
(of an article or person) genuine