allo-
combining form
variants:
or before vowels all-
Definition of allo-
1
: other : different : atypical
allogamous allotrope
2
: isomeric form or variety of (a specified chemical compound)
allopurinol
3
: being one of a group whose members together constitute a structural unit especially of a language
allophone
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Merriam-Webster unabridged
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