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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A bolt with a square or hexagonal head.

from the GNU version of the Collaborative International Dictionary of English

  • n. A threaded hexagonal or square-headed bolt with a nut; it is tightened with a wrench and used to connect metal parts.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a bolt with a square or hexagonal head on one end and a threaded shaft on the other end; tightened with a wrench; used to connect metal parts


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