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.

3.
(of a loudspeaker) having two or more cones with their centers mounted on the same axis.
/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
adj.

“having a common axis,” 1904, as a term in mathematics; coaxial cable is 1934. See co- + axial.

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