noun, plural (especially collectively) hatch·et·fish, (especially referring to two or more kinds or species) hatch·et·fish·es. any deep-sea fishes of the genera Argyropelicus, Sternoptyx, and related genera, of tropical and temperate waters, having a silvery, hatchet-shaped body.

What is the scientific name for Hatchetfish?

Scientific Name: Argyropelecus gigas. Size Range: About 4 inches.

Is hatchet a proper noun?

A small light axe with a short handle; a tomahawk.