/ Dictionary / Index R regimental: Meaning and Definition of Find definitions for: reg•i•men•tal Pronunciation: (rej"u-men'tl), [key] — adj. of or pertaining to a regiment. —n. the uniform of a regiment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: regimental (Thesaurus) regiment regimentation Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language