Found 2 items, similar to jury mast.
English → English (WordNet) Definition: jury mast jury mast n : a temporary mast to replace one that has broken off
English → English (gcide) Definition: Jury mast Jury mast \Ju"ry mast\ (a) A temporary mast, in place of one that has been carried away, or broken. (b) (Med.) An apparatus to support the trunk and head in spinal disease. [Webster 1913 Suppl.]