atmo-

American  

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

   atmosphere.

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atmo- British  

combining form

1. air or vapour

   atmometer

   atmosphere

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Usage

What does atmo- mean? Atmo- is a combining form used like a prefix meaning “air.” It is often used in scientific terms, especially in meteorology. Atmo- comes from the Greek atmós, meaning “smoke” or "vapor."

Etymology

Origin of atmo-

< Greek, combining form of atmós vapor, smoke