flea

play
noun \ˈflē\

Definition of flea

  1. :  any of an order (Siphonaptera) of small wingless bloodsucking insects that have a hard laterally compressed body and legs adapted to leaping and that feed on warm-blooded animals

flea in one's ear

  1. :  rebuke sent him away with a flea in his ear

Recent Examples of flea from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'flea'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Illustration of flea

Origin and Etymology of flea

Middle English fle, from Old English flēa; akin to Old High German flōh flea



FLEA Defined for English Language Learners

flea

play
noun

Definition of flea for English Language Learners

  • : a very small insect that lives on animals and that has strong legs used for jumping


FLEA Defined for Kids

flea

play
noun \ˈflē\

Definition of flea for Students

  1. :  a small bloodsucking insect that has no wings and a hard body


Medical Dictionary

flea

play
noun \ˈflē\

Medical Definition of flea

  1. :  any of the order Siphonaptera comprising wingless bloodsucking insects that have a hard laterally compressed body and legs adapted to leaping and that feed on warm-blooded animals—see cat flea, chigoe 1, dog flea, rat flea, sand flea, sticktight flea

Illustration of flea



Seen and Heard

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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

sad or melancholy

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • istock-refers-to-this-as-a-tumble-of-strawberries-which-sounded-pretty-nice-to-us
  • Which is a synonym of garner?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!