/ Dictionary / Index L Lancastrian: Meaning and Definition of Find definitions for: Lan•cas•tri•an Pronunciation: (lang-kas'trē-un), [key] — adj. of or pertaining to the royal family of Lancaster. —n. an adherent or member of the house of Lancaster, esp. in the Wars of the Roses. a native or resident of Lancashire or Lancaster. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lancastrian (Thesaurus) Lancaster lance Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language