/ Dictionary / Index T trichion: Meaning and Definition of Find definitions for: trich•i•on Pronunciation: (trik'ē-on"), [key] — pl. trich•i•a trich•i•ons. the point of intersection of the normal hairline and the middle line of the forehead. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: trichion (Thesaurus) trichinous trichite Related Content Daily Word Quiz: ravenous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language