• Noun

    Machinery . a jib crane having a boom hinged near the base of the mast so as to rotate about the mast, for moving a load toward or away from the mast by raising or lowering the boom.
    Also called oil derrick. the towerlike framework over an oil well or the like.
    a boom for lifting cargo, pivoted at its inner end to a ship's mast or kingpost, and raised and supported at its outer end by topping lifts.

    Verb (used with object), verb (used without object)

    Machinery . luff.

    Synonyms

    noun
    crane , hoist , lift , machine , rig

    tác giả


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