dragonfish [drag-uh n-fish] Word Origin noun, plural (especially collectively) drag·on·fish, (especially referring to two or more kinds or species) drag·on·fish·es.
- any marine of the family Bathydraconidae, of Antarctic seas, having an elongated body and flattened head and being biochemically adapted to extremely low temperatures.
- Also called . any of the family Pegasidae, of tropical Indo-Pacific waters, having armor of bony rings and large, horizontal, fanlike pectoral fins.
Origin of dragonfish First recorded in 1685–95;+