Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

prothorax

play
noun pro·tho·rax \(ˌ)prō-ˈthȯr-ˌaks\

Definition of prothorax

  1. :  the anterior segment of the thorax of an insect — see insect illustration



Origin of prothorax

New Latin prothorac-, prothorax, from 1pro- + thorax


First Known Use: 1826


Learn More about prothorax


Seen and Heard

What made you want to look up prothorax? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a timid, meek, or unassertive person

Get Word of the Day daily email!