/ Dictionary / Index B beam compass: Meaning and Definition of Find definitions for: beam' com"pass Pronunciation: [key] — Drafting. Drafting. a compass having adjustable legs, set perpendicular to the paper and sliding along a horizontal bar so as to permit the drawing of large circles. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. beam brick beam-ends 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