[ koh-ak-see-uh l ]
/ koʊˈæk si əl /


Also co·ax·al [koh-ak-suh l] /koʊˈæk səl/. having a common axis or coincident axes.
  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.
(of a loudspeaker) having two or more cones with their centers mounted on the same axis.

Origin of coaxial

First recorded in 1880–85; co- + axial

Related forms

co·ax·i·al·ly, adverbun·co·ax·al, adjectiveun·co·ax·i·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for coaxial

British Dictionary definitions for coaxial


coaxal (kəʊˈæksəl)

/ (kəʊˈæksɪəl) /


having or being mounted on a common axis
geometry (of a set of circles) having all the centres on a straight line
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