WordReference Random House Unabridged Dictionary of American English © 2026
horn•worm
(hôrn′wûrm′),USA pronunciation n.
- Insectsthe larva of any of several hawk moths, having a hornlike process at the rear of the abdomen.
- horn + worm 1670–80, American.
'hornworm' also found in these entries (note: many are not synonyms or translations):