either of a pair of wooden or metal braces on the head of a mast to support the topmast, etc
WordReference Random House Unabridged Dictionary of American English © 2025
cross•tree
(krôs′trē′, kros′-),USA pronunciation n.
- Nautical, Naval Termseither of a pair of timbers or metal bars placed athwart the trestletrees at a masthead to spread the shrouds leading to the mast above, or on the head of a lower mast to support the platform or top.
- Building[Carpentry.]a heavy crossbeam.
- cross- + tree 1620–30
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'crosstree' also found in these entries (note: many are not synonyms or translations):