/ Dictionary / Index G Glendower: Meaning and Definition of Find definitions for: Glen•dow•er Pronunciation: (glen-dou'ur, glen'dou-ur), [key] 1359?–1416?, Welsh rebel against Henry IV of England. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: glendower (Thesaurus) Glendora Glen Ellyn Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language