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pelvic fin

 

Definitions from WordNet

Noun pelvic fin has 1 sense
  1. pelvic fin, ventral fin - 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
    --1 is a kind of fin

Definitions from the Web

Pelvic fin

A pelvic fin refers to one of the paired fins located on the ventral (lower) surface of a fish. It is present in most bony fish, and is used primarily for stabilizing, steering, and sometimes for propulsion.

Example Sentences:

1. The pelvic fins of this species of fish are large and powerful, enabling it to swim quickly and maneuver through the water with great agility.

2. The male seahorse uses its pelvic fin to transfer eggs from the female's pouch and carry them until they hatch.

3. The absence of pelvic fins in eels allows them to move undulatingly, making their movement significantly different from other fish species.

4. By analyzing the size and structure of the pelvic fins, scientists can determine the locomotion abilities and adaptations of ancient fish species.

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