exo-
outside, outer
From Greek exo, outside, from ex, out of
Meaning
What does exo- mean?
exo- is a prefix meaning outside, outer. It comes from Greek exo, outside, from ex, out of.
Inside words it is spelled ex.
Exo- can shorten to ex- before a vowel, as in exostosis; its opposite is endo-, as in exocrine and endocrine glands.
In real words
Medical words with exo-
the release of substances from a cell when a vesicle fuses with the cell membrane and empties outside · In the dictionary
giving off heat, as a chemical reaction that releases heat
a bony outgrowth from the surface of a bone or from the root of a tooth
Don't mix it up
Parts easily confused with exo-
In the dictionary
More terms built with it
Terms in our life science dictionary that list exo- among their word parts.
Sources
Checked against
Written for biofideX in plain words, after checking these references:
- 1.3 Common Prefixes – Medical Terminology 2e
- Appendix A: Word Parts and What They Mean
- EXO- Definition & Meaning - Merriam-Webster
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Position
exo- is one of 14 parts in this lesson. Learn them together, then take real words apart.
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