exo-

combining form
variants: or ex-

Definition of exo-

1 :outside
  • exogamy
:outer
  • exoskeleton
— compare ect-, end-
2 :turning out
  • exoergic

Origin and Etymology of exo-

Greek exō out, outside, from ex out of — more at ex-


Seen and Heard

What made you want to look up exo-? 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

alert quickness of mind or body

Get Word of the Day daily email!

Love words? Need even more definitions?

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