/ Dictionary / Index T tectrix: Meaning and Definition of Find definitions for: tec•trix Pronunciation: (tek'triks), [key] — pl. tec•tri•ces covert (def. 8). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tectosilicate tectum Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language