jackscrew definition

  • noun:
    • A jack operated by a screw. Also known as screw jack.
    • A jack (mechanical lifting device) which can be managed by-turning a leadscrew.
    • A jack by which a screw is used for lifting, or applying force. See Illust. of 2d jack, n., 5.
    • See jack, 11 .
    • The screw-mechanism forming part of a dental tool called a screw-jack (which see), for managing tooth.
    • screw-operated jack

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