a beam that spans from one support to another
WordReference Random House Learner's Dictionary of American English © 2026
cross•beam /ˈkrɔsˌbim, ˈkrɑs-/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- Buildinga horizontal beam in a structure serving as a support.
cross•beam
(krôs′bēm′, kros′-),USA pronunciation n.
- Buildinga transverse beam in a structure, as a joist.
- cross- + beam 1585–95
Collins Concise English Dictionary © HarperCollins Publishers::
'crossbeam' also found in these entries (note: many are not synonyms or translations):