Barrel bolt
a rod-shaped bolt for fastening a door or the like, attached to one side of the door at the edge and sliding into a socket on the frame of the opening.
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- Barrel cactus
any of several large, cylindrical, ribbed, spiny cacti of the genera echinocactus and ferocactus. historical examples he lives upon the barrel cactus, a plant so protected by spines as to seem unapproachable by man or animal. the mystic mid-region arthur j. burd-ck near by springs up the barrel cactus, a forbidding column no one dares […]
- Barrel cuff
a single cuff on a tailored sleeve, formed by a band of material and usually fastened by a b-tton.
- Barrel distortion
a distortion produced by a lens in which the magnification decreases toward the edge of the field. noun (photog) distortion of an image produced by an optical system that causes straight lines at image margins to bulge outwards
- Barrel engine
an engine having cylinders arranged around and parallel to a shaft, which they rotate by means of the contact of their piston rods with a swash plate or cam on the shaft.
- Barreleye
any of the bathypelagic fishes of the family opisthoproctidae, especially macropinna microstoma, having telescoping eyes.