Jacksmelt

Part of speech: noun

Definitions

1. A species of fish noted for its streamlined shape and shiny skin is typically found in warm coastal waters and plays a vital role in marine ecosystems
2. A small fish found in warm ocean waters known for its slender body and reflective scales
3. A type of fish inhabiting nearshore environments that features a shiny exterior and a slim physique

Etymology: Jacksmelt is a slender fish of the Pacific coast of North America, and the name is a pairing of two unrelated words. "Smelt" is an old name for small silvery fish of the family Osmeridae, a word that came into English from Old Norse or a related Germanic source. The first element, "jack," is a common English nickname-based word used in many animal names (such as jackfish or jackrabbit), where it typically signals a smaller or less prized member of a group. Naturalists applied "jacksmelt" to this fish, which is not a true smelt at all but a member of the silverside family, Atherinopsidae. Its name reflects a resemblance to smelt in size and appearance, not a close biological relationship.