the larva of any of several hawk moths, having a hornlike process at the rear of the abdomen.

Nearby words

  1. hornsby,
  2. hornsby, rogers,
  3. hornstone,
  4. hornswoggle,
  5. horntail,
  6. hornwort,
  7. hornwrack,
  8. horny,
  9. horny coral,
  10. horny frog

Origin of hornworm

An Americanism dating back to 1670–80; horn + worm

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019