exo-

combining form

variants or ex-

1

: outside

exogamy

: outer

exoskeleton

compare ect-, end-

2

: turning out

exoergic

Word History

Etymology

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

Kids Definition

exo-

combining form

variants or ex-

: outside

exurb

: outer

exoskeleton

compare end- sense 1

Etymology

from Greek exō "out, outside"