Definition of ventral fin in English:

ventral fin

Syllabification: ven·tral fin

noun

Zoology
  • 1 another term for pelvic fin.
  • 1.1An unpaired fin on the underside of certain fishes.
    More example sentences
    • They have no pectoral or ventral fins and their dorsal, tail and anal fins are merged into one long fin down the back.
    • Haddock are typically cod-like with three dorsal fins and two ventral fins.
    • Cod have three dorsal fins and two ventral fins for increased manoeuvrability.
  • 1.2A single vertical fin under the fuselage or tail of an aircraft.
    More example sentences
    • IAI and Cyclone Aviation Products Ltd in Carmiel manufacture the ventral fins, rudders, horizontal stabilisers and engine access doors.
    • The Impala has a small lipstick camera mounted on the ventral fin to record the visual and audio aspects of your flight.
    • A ventral fin was also installed but by the time testing was completed, the Navy had lost interest in the program.

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