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Definitions from WordNet

Definitions from the Web

Dorsal Fin

Description

A dorsal fin is a feature found on the backs of various aquatic creatures, particularly fish and some marine mammals. It is a rigid, upright structure that acts as a stabilizer and aids in maneuvering through the water.

Senses and Usages

• Sense 1: Anatomy

  In anatomy, the dorsal fin refers to a specific fin on the middle of the back of a fish, typically formed by spiny rays.

  Sample Sentence: The shark's dorsal fin sliced through the water as it cruised near the surface.

• Sense 2: Marine Mammals

  For marine mammals such as dolphins and whales, dorsal fins serve as an identifying characteristic. They come in various shapes and sizes, helping to differentiate between species.

  Sample Sentence: The orca's tall and curved dorsal fin made it easy to recognize among the pod.

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