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-

Dictionary Entries Near exo-

ex nihilo nihil fit

exo-

exoadaptation

See More Nearby Entries 

Cite this Entry

“Exo-.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/exo-. Accessed 22 Nov. 2024.

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Kids Definition

exo-

combining form
variants or ex-
: outside
exurb
: outer
exoskeleton
compare end- sense 1
Etymology

from Greek exō "out, outside"

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