dorsal fin

Noun

Meaning

unpaired median fin on the backs of fishes and some other aquatic vertebrates that help to maintain balance

Source: WordNet

Hypernyms

Examples

At about convert the male's dorsal fin is more than twice the size of the female's and is more of a triangular shape—a tall, elongated isosceles triangle —whereas hers is shorter and more curved. Source: Internet

All species have a dorsal fin to prevent themselves from involuntarily spinning in the water. Source: Internet

Based on its dorsal fin and the shape of its head, some (such as Bernard Heuvelmans ) have suggested that the animal was some sort of marine mammal. Source: Internet

Generally silvery-white in color, hence the name, depending upon habitat and size specimens have begun to develop a darker shade near the dorsal fin and along the top of the fish. Source: Internet

Gobies have two distinct dorsal fins, Blennies have a single dorsal fin that runs the length of their body. Source: Internet

It has a long neck with a turtle-like head and a long continuous dorsal fin. Source: Internet

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