/ Dictionary / Index U uniaxial: Meaning and Definition of Find definitions for: u•ni•ax•i•al Pronunciation: (y"nē-ak'sē-ul), [key] — adj. having one axis. (of a crystal) having one direction in which double refraction does not occur. (of a plant) having a primary stem that does not branch and that terminates in a flower. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Uniate unicameral Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language