/ Dictionary / Index C C-axis: Meaning and Definition of Find definitions for: C-ax•is Pronunciation: (sē'ak"sis), [key] — pl. C-ax•es the vertical crystallographic axis. Cf. A-axis, B-axis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Caxias do Sul Caxton Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language