noun, plural (especially collectively) trum·pet·fish, (especially referring to two or more kinds or species) trum·pet·fish·es.

any of several fishes of the family Aulostomidae, having a long, tubular snout, as the slender, brown-flecked Aulostomus maculatus, inhabiting waters on both sides of the tropical Atlantic Ocean, having the habit of orienting vertically in the water and capturing its prey from that position.

Origin of trumpetfish

First recorded in 1660–70; trumpet + fish Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019