[ brey-kee-uh l, brak-ee- ]
/ ˈbreɪ ki əl, ˈbræk i- /
Anatomy, Zoology


belonging to the arm, foreleg, wing, pectoral fin, or other forelimb of a vertebrate.
belonging to the upper part of such a member, from the shoulder to the elbow.
armlike, as an appendage.


a brachial part or structure.

Origin of brachial

First recorded in 1570–80, brachial is from the Latin word brāchiālis of, belonging to the arm. See brachi-, -al1

Related forms

in·ter·bra·chi·al, adjectivepost·bra·chi·al, adjectivepre·bra·chi·al, adjectivepseu·do·bra·chi·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for brachial

British Dictionary definitions for brachial


/ (ˈbreɪkɪəl, ˈbræk-) /


of or relating to the arm or to an armlike part or structure

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 brachial


[ brākē-əl ]


Relating to the arm.

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

Science definitions for brachial


[ brākē-əl ]

Relating to or involving the arm.
Relating to the forelimb or wing of a vertebrate.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.