/ Dictionary / Index S Sierra Madre: Meaning and Definition of Find definitions for: Si•er•ra Ma•dre Pronunciation: (sē-er'u mä'drā for 2 also Sp. syer'rä mä'&thslashre), [key] a mountain range extending from S Wyoming into N Colorado. two parallel mountain chains in Mexico, bordering the central plateau on the E and W, and extending SE into N Guatemala. a town in S California. 10,837. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sierra lily Sierra Nevada Related Content Daily Word Quiz: pedagogy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language