from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See jackscrew.
from the GNU version of the Collaborative International Dictionary of English
- n. Same as Jackscrew.
from The Century Dictionary and Cyclopedia
- n. In dentistry, an implement, consisting of two abutments with screws between them, for regulating displaced or crowded teeth.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. screw-operated jack
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