01 n. A square bar of wood or iron, used to support the topmast, being passed through a hole or mortise at its heel, and resting on the trestle trees.
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1.
A square bar of wood or iron, used to support the topmast, being passed through a hole or mortise at its heel, and resting on the trestle trees.(Naut.)
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2.
A wooden or metal bar or pin, used to support or steady anything.
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3.
A pin of hard wood, tapering to a point, used to open the strands of a rope in splicing.
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4.
A block of wood used in mounting and dismounting heavy guns.(Mil.)