CROSSBEAM
trave, traverse, crossbeam, crosspiece
(noun) a horizontal beam that extends across something
Source: WordNet® 3.1
Etymology
Noun
crossbeam (plural crossbeams)
A horizontal structural beam that runs perpendicular to the primary support beams; a girder.
(nautical) A beam laid across the bitts, to which the cable is fastened when riding at anchor.
Source: Wiktionary
Cross"beam` (-bm`). n.
1. (Arch.)
Definition: A girder.
2. (Naut.)
Definition: A beam laid across the bitts, to which the cable is fastened
when riding at anchor.
Source: Webster’s Unabridged Dictionary 1913 Edition