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coaxial

[koh-ak-see-uh l] /koʊˈæk si əl/
adjective
1.
Also, coaxal
[koh-ak-suh l] /koʊˈæk səl/ (Show IPA)
. having a common axis or coincident axes.
2.
Geometry.
  1. (of a set of circles) having the property that each pair of circles has the same radical axis.
  2. (of planes) intersecting in a straight line.
3.
(of a loudspeaker) having two or more cones with their centers mounted on the same axis.
Origin
1880-1885
1880-85; co- + axial
Related forms
coaxially, adverb
uncoaxal, adjective
uncoaxial, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for coaxal

coaxial

/kəʊˈæksɪəl/
adjective
1.
having or being mounted on a common axis
2.
(geometry) (of a set of circles) having all the centres on a straight line
3.
(electronics) formed from, using, or connected to a coaxial cable
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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Word Origin and History for coaxal
coaxial
1904, as a term in mathematics; coaxial cable is 1934. See com- + axis.
Online Etymology Dictionary, © 2010 Douglas Harper
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