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

pill bug

noun

Definition of pill bug

  1. :  wood louse; especially :  a wood louse capable of curling itself into a ball



Origin and Etymology of pill bug

2pill; from its rolling into a ball when disturbed


First Known Use: 1843


Learn More about pill bug


Seen and Heard

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

WORD OF THE DAY

a jerking and twitching of the body

Get Word of the Day daily email!