/ Dictionary / Index L Laurasia: Meaning and Definition of Find definitions for: Laur•a•sia Pronunciation: (lô-rā'zhu, -shu), [key] — n. Geol. a hypothetical landmass in the Northern Hemisphere near the end of the Paleozoic Era: split apart to form North America and Eurasia. Cf. Gondwana. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: laurasia (Thesaurus) lauraldehyde laurate Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language