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3 definitions found

From: Taiwan MOE computer dictionary

 lock nut

From: Webster's Revised Unabridged Dictionary (1913)

 Lock, n.
 1. Anything that fastens; specifically, a fastening, as for a door, a lid, a trunk, a drawer, and the like, in which a bolt is moved by a key so as to hold or to release the thing fastened.
 2. A fastening together or interlacing; a closing of one thing upon another; a state of being fixed or immovable.
    Albemarle Street closed by a lock of carriages.   --De Quincey.
 3. A place from which egress is prevented, as by a lock.
 4. The barrier or works which confine the water of a stream or canal.
 5. An inclosure in a canal with gates at each end, used in raising or lowering boats as they pass from one level to another; -- called also lift lock.
 6. That part or apparatus of a firearm by which the charge is exploded; as, a matchlock, flintlock, percussion lock, etc.
 7. A device for keeping a wheel from turning.
 8. A grapple in wrestling.
 Detector lock, a lock containing a contrivance for showing whether it as has been tampered with.
 Lock bay Canals, the body of water in a lock chamber.
 Lock chamber, the inclosed space between the gates of a canal lock.
 Lock nut. See Check nut, under Check.
 Lock plate, a plate to which the mechanism of a gunlock is attached.
 Lock rail Arch., in ordinary paneled doors, the rail nearest the lock. Lock rand Masonry, a range of bond stone. --Knight.
 Mortise lock, a door lock inserted in a mortise.
 Rim lock, a lock fastened to the face of a door, thus differing from a mortise lock.

From: Webster's Revised Unabridged Dictionary (1913)

 Nut n.
 1. Bot. The fruit of certain trees and shrubs (as of the almond, walnut, hickory, beech, filbert, etc.), consisting of a hard and indehiscent shell inclosing a kernel.
 2. A perforated block (usually a small piece of metal), provided with an internal or female screw thread, used on a bolt, or screw, for tightening or holding something, or for transmitting motion. See Illust. of 1st Bolt.
 3. The tumbler of a gunlock.
 4. Naut. A projection on each side of the shank of an anchor, to secure the stock in place.
 Check nut, Jam nut, Lock nut, a nut which is screwed up tightly against another nut on the same bolt or screw, in order to prevent accidental unscrewing of the first nut.
 Nut buoy. See under Buoy.
 Nut coal, screened coal of a size smaller than stove coal and larger than pea coal; -- called also chestnut coal.
 Nut crab Zool., any leucosoid crab of the genus Ebalia as, Ebalia tuberosa of Europe.
 Nut grass Bot., See nut grass in the vocabulary.
 Nut lock, a device, as a metal plate bent up at the corners, to prevent a nut from becoming unscrewed, as by jarring.
 Nut pine. Bot. See under Pine.
 Nut rush Bot., a genus of cyperaceous plants (Scleria) having a hard bony achene.  Several species are found in the United States and many more in tropical regions.
 Nut tree, a tree that bears nuts.
 Nut weevil Zool., any species of weevils of the genus Balaninus and other allied genera, which in the larval state live in nuts.