NOUN
- either of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movement; correspond to hind limbs of a land vertebrate
How To Use ventral fin In A Sentence
- IAI and Cyclone Aviation Products Ltd in Carmiel manufacture the ventral fins, rudders, horizontal stabilisers and engine access doors.
- To handle the extra power at high altitude, the Columbia 400 incorporates a larger rudder in both chord and span, along with a ventral fin beneath the empennage.
- The shape of the elongated spiky dorsal fin is reflected in the sweep of the flowing ventral fins.
- This fish may be distinguished from codling by the long filaments of the ventral fins and the more rounded tail fin.
- In green swordtails, the sword consists of a set of ventral fin rays that extend posteriorly beyond the caudal fin margin.
- The male is a little larger than the female and has very bright orange ventral fins when in breeding colouration.
