/ Dictionary / Index C coaxial: Meaning and Definition of Find definitions for: co•ax•i•al Pronunciation: (kō-ak'sē-ul), [key] — adj. having a common axis or coincident axes. (of a set of circles) having the property that each pair of circles has the same radical axis. (of planes) intersecting in a straight line. (of a loudspeaker) having two or more cones with their centers mounted on the same axis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: coaxial (Thesaurus) coax coaxial cable Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language