Sailfish

Part of speech: noun

Pronunciation: /ˈseɪlˌfɪʃ/

Definitions

1. A species of fish characterized by its streamlined body, prominent dorsal fin, and remarkable speed in aquatic environments
2. This aquatic creature is notable for its elongated form, ability to swim rapidly, and a high dorsal fin that resembles a sail
3. A type of large fish recognized for its distinctive long bill, vibrant coloration, and exceptional swimming speed in open waters

Etymology: The sailfish gets its name from the enormous dorsal fin that rises from its back like a ship's sail, a feature that is almost too literal to need explaining. The compound is simply "sail" joined to "fish," so the name describes the animal's most conspicuous part rather than any legend or borrowed term. Its fin can be raised and lowered, and fishermen and naturalists have long remarked on how it folds flat against the body when the fish is at full speed.

Synonyms: fish, game fish