Pelvic Fin (Noun)
Meaning
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.
Classification
Nouns denoting animals.
Examples
- In teleost fish, the pelvic fin plays a role similar to the hind limbs of land vertebrates, helping in balance and maneuverability.
- The pelvic fins of the surfperch serve as a stabilizer and provide additional control during sharp turns.
- Compared to the pectoral fin, the pelvic fin of most fish species is typically much smaller in size.
- Sharks lack a distinct pelvic fin and instead rely on their caudal fin for propulsion.
- In some species of fish, the pelvic fin has fused with the pectoral fin, resulting in a more streamlined body.