/ Dictionary / Index B blind flange: Meaning and Definition of Find definitions for: blind' flange' Pronunciation: [key] a disk for closing the end of a pipe, having holes for bolting it to a flange. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. blindfish blind floor Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language