rheo-

1.
a combining form meaning “flow,” “current,” “stream,” used in the formation of compound words:
rheoscope.
Compare -rrhea.
Origin
combining form representing Greek rhéos stream, something flowing
British Dictionary definitions for rheo-

rheo-

combining form
1.
indicating stream, flow, or current: rheometer, rheoscope
Word Origin
from Greek rheos stream, anything flowing, from rhein to flow
Word Origin and History for rheo-

word-forming element meaning "current of a stream," from Greek rheos "a flowing, stream, current," from PIE root *sreu-; see rheum.

rheo- in Medicine

rheo- pref.
Current; flow: rheotaxis.