/ Dictionary / Index L Laënnec: Meaning and Definition of Find definitions for: Laën•nec Pronunciation: (lā-nek'), [key] 1781–1826, French physician who invented the stethoscope. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Laemmle laeotropic Related Content Daily Word Quiz: frowzy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language