-rhea


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-rrhea

The diagraph rh occurring at the beginning of a syllable in a word of Greek origin is ordinarily changed to rrh when a prefix or other lexical element is placed before it, as in this terminal form from rhoia.
A flowing; a flux.
[G. rhoia, a flow]

-rhea

Combining forms meaning flow or discharge.
Synonym(s): -rhoea.
[G. rhoia, a flowing]