/ Dictionary / Index P post-and-beam construction: Meaning and Definition of Find definitions for: post'-and-beam' construc"tion Pronunciation: (pōst'un-bēm'), [key] — Building Trades. Building Trades. wall construction in which beams rather than studs are used to support heavy posts. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. postal union postatomic Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language