/ Dictionary / Index L larithmics: Meaning and Definition of Find definitions for: la•rith•mics Pronunciation: (lu-ri'miks), [key] — n. (used with a sing. v.) the study of quantitative relations in population aggregates. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Larissa larixinic acid Related Content Daily Word Quiz: winsome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language