/ Dictionary / Index D demibastion: Meaning and Definition of Find definitions for: dem•i•bas•tion Pronunciation: (dem"ē-bas'chun), [key] — n. Fort. a work consisting of half a bastion, and hence having one face and one flank. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. demi- demi-cannon Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language