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
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- 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.
- Barrelfish
a blackish stromateid fish, hyperoglyphe perciformis, inhabiting new england coastal waters.
- Barrel knot
a knot for fastening together two strands of gut or nylon, as fishing lines or leaders.
- Barrel of monkeys
noun good-natured pandemonium examples perhaps it’s the silliness of the image, or how perplexed and tickled you’d feel if you ever saw a barrel of monkeys. word origin based on what would happen if monkeys were in a barrel usage note slang