a combining form meaning “arm,” “upper arm,” used in the formation of compound words: brachiopod.
Also especially before a vowel, brachi-.

Origin of brachio-

combining form representing Latin brāchium and Greek brachī́ōn Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for brachio-


before a vowel brachi-

combining form

indicating a brachiumbrachiopod
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for brachio-



The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.