Part 753

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. Milton.

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.

Lock, v. t. [imp. & p. p. Locked (?); p. pr. & vb. n. Locking.] 1. To fasten with a lock, or as with a lock; to make fast; to prevent free movement of; as, to lock a door, a carriage wheel, a river, etc.

2. To prevent ingress or access to, or exit from, by fastening the lock or locks of; -- often with up; as, to lock or lock up, a house, jail, room, trunk. etc.

3. To fasten in or out, or to make secure by means of, or as with, locks; to confine, or to shut in or out -- often with up; as, to lock one's self in a room; to lock up the prisoners; to lock up one's silver; to lock intruders out of the house; to lock money into a vault; to lock a child in one's arms; to lock a secret in one's breast.

4. To link together; to clasp closely; as, to lock arms. " Lock hand in hand." Shak.

5. (Canals) To furnish with locks; also, to raise or lower (a boat) in a lock.

6. (Fencing) To seize, as the sword arm of an antagonist, by turning the left arm around it, to disarm him.

Lock (?), v. i. To become fast, as by means of a lock or by interlacing; as, the door locks close.

When it locked none might through it pass.

Spenser.

To lock into, to fit or slide into; as, they lock into each other. Boyle.

Lock"age (?), n. 1. Materials for locks in a canal, or the works forming a lock or locks.

2. Toll paid for passing the locks of a canal.

3. Amount of elevation and descent made by the locks of a canal.

The entire lock will be about fifty feet.

De Witt Clinton.

Lock"-down` (?), n. A contrivance to fasten logs together in rafting; -- used by lumbermen. [U.S.]

Locked"-jaw` (?), n. See Lockjaw.

Lock"en (?), obs. p. p. of Lock. Chaucer.

Lock"en, n. (Bot.) The globeflower (Trollius).

Lock"er (?), n. 1. One who, or that which, locks.

2. A drawer, cupboard, compartment, or chest, esp. one in a ship, that may be closed with a lock.

Chain locker (Naut.), a compartment in the hold of a vessel, for holding the chain cables. -- Davy Jones's locker, or Davy's locker. See Davy Jones. -- Shot locker, a compartment where shot are deposited. Totten.