noun, plural (especially collectively) dragonfish (especially referring to two or more kinds or species) dragonfishes.
any marine fish
of the family Bathydraconidae, of Antarctic seas, having an elongated body and flattened head and being biochemically adapted to extremely low temperatures.
2. Also called seamoth.
of the family Pegasidae, of tropical Indo-Pacific waters, having armor of bony rings and large, horizontal, fanlike pectoral fins.