-rrhoea or  (especially US) -rrhea
combining form in countable noun
(in pathology) a discharge or flow
⇒ 
diarrhoea
Origin
from New Latin, from Greek -rrhoia, from rhoia a flowing, from rhein to flow-rrhoea
1 
variant of -rrhea.
-rrhoeavariant of -rhoea.
Also, Chiefly US, -rrhea.
Usage: See note at oe.
-rrhoea
chiefly British variant of -rrhea
chiefly British variant of -rrhea
-rrhoea
                combining form
     -          discharge; flow表示“排出”, “流出”:
-       diarrhoea. 
词源
from Greek rhoia 'flow, flux'.
☞ -rrhea, -rrhoea
ORIGIN: from Greek  rhoia  flux, flow.
-r·rhoea
noun combining form 
see -rrhea
see -rrhea
-rrhoea
Suffix
- Alternative form of -rrhea