/ Dictionary / Index S sodium lactate: Meaning and Definition of Find definitions for: so'dium lac'tate Pronunciation: [key] — Chem. Chem. a water-soluble, hygroscopic salt, CHNaO, used in solution in medicine to treat metabolic acidosis, usually by injection. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sodium iodide sodium lamp Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language