/ Dictionary / Index E euthenics: Meaning and Definition of Find definitions for: eu•then•ics Pronunciation: (y-then'iks), [key] — n. (used with a sing. v.) a science concerned with bettering the condition of human beings through the improvement of their environment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: euthenics (Thesaurus) euthanize eutherian Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language