WordReference Random House Unabridged Dictionary of American English © 2026
brachio-, 
  1. a combining form meaning "arm,'' "upper arm,'' used in the formation of compound words:brachiopod.
Also,[esp. before a vowel,] brachi-. 
  • combining form representing Latin brāchium and Greek brachí̄ōn

Collins Concise English Dictionary © HarperCollins Publishers::
brachio-, (before a vowel) brachi- combining form
  1. indicating a brachium: brachiopod
'brachio-' also found in these entries (note: many are not synonyms or translations):
brachi- - brachiocephalic artery - brachiopod - brachiosaur

Forum discussions with the word(s) "brachio-" in the title:


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