rheo-

American  

1. a combining form meaning “flow,” “current,” “stream,” used in the formation of compound words.

   rheoscope.

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rheo- British  

combining form

1. indicating stream, flow, or current

   rheometer

   rheoscope

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Usage

What does rheo- mean? Rheo- is a combining form used like a prefix meaning “flow,” "current," or "stream." It is often used in scientific terms, especially those referring to electrical currents or the flow of fluids in the body. Rheo- comes from the Greek rhéos, meaning “stream.”Rheo- is closely related to another combining form, -rrhea, meaning "flow" or "discharge," which is connected to—you guessed it—the word diarrhea. Want to know more? Read our Words That Use -rrhea article.

Etymology

Origin of rheo-

Combining form representing Greek rhéos stream, something flowing

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