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[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
interbrachial, adjective
postbrachial, adjective
prebrachial, adjective
pseudobrachial, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for brachial
Historical Examples
  • brachial aneurysm usually occurs at the bend of the elbow, is of traumatic origin, and is best treated by excision of the sac.

    Manual of Surgery Alexis Thomson and Alexander Miles
  • Then they erected in the bakehouse a brachial weighing-machine.

    Bouvard and Pcuchet Gustave Flaubert
  • Contusion of brachial plexus, with mixed signs, which disappeared in two months.

  • The arm is divided into three sections: the deltoid, brachial and carpal.

  • The forearm is no longer the lever which the brachial muscle moves (Fig. 10), but now becomes the base from which it acts.

    A Book of Exposition Homer Heath Nugent
  • There is some difference in the pressure in the femoral and the brachial and some use both arteries.

    Arteriosclerosis and Hypertension: Louis Marshall Warfield
  • Hence the clinical measuring of the pressure in the brachial artery alone is not sufficient for a diagnosis of arteriosclerosis.

    Arteriosclerosis and Hypertension: Louis Marshall Warfield
  • Hg lower than the systolic pressure, and consequently these figures represent the pulse pressure in the brachial artery of man.

    Arteriosclerosis and Hypertension: Louis Marshall Warfield
  • All measurements are taken from the brachial artery, with the individuals in the sitting posture.

    Arteriosclerosis and Hypertension: Louis Marshall Warfield
  • It is measured by noting the first sound audible over the brachial artery using the auscultatory method.

    Arteriosclerosis and Hypertension: Louis Marshall Warfield
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
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brachial in Medicine

brachial bra·chi·al (brā'kē-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.
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brachial in Science
  1. Relating to or involving the arm.

  2. Relating to the forelimb or wing of a vertebrate.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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