brachio-

American  

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

   brachiopod.

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brachio- British  

combining form

1. indicating a brachium

   brachiopod

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Usage

What does brachio- mean? Brachio- is a combining form used like a prefix meaning “arm” or “upper arm.” It is often used in medical and scientific terms, especially in anatomy and in zoology. Brachio- comes from the Greek brachī́ōn, meaning “arm.” A medical term for the upper arm is brachium, from Latin and related to the Greek brachī́ōn. What are variants of brachio-?When combined with words or word elements that begin with a vowel, brachio- becomes brachi-, as in brachialgia.

Etymology

Origin of brachio-

Combining form representing Latin brāchium and Greek brachī́ōn