/ Dictionary / Index T thelytokous: Meaning and Definition of Find definitions for: the•lyt•o•kous Pronunciation: (thi-lit'u-kus), [key] — adj. pertaining to or produced by thelytoky. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. T helper cell thelytoky Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language