| backwash |
The gravity-driven flow of water back down the slope of a beach.
출처: www.wwnorton.com/college/geo/earth2/glossary/b.htm
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| backcross |
A cross between a hybrid and either one of its parents.
출처: www.na.fs.fed.us/spfo/pubs/silvics_manual/volume_2...
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| background radiation |
means radiation from cosmic sources; naturally occurring radioactive material, including radon (except as a decay product of source or special nuclear material); and global fallout as it exists in the environment from the testing of nuclear explosive devices or from past nuclear accidents such as Chernobyl that contribute to background radiation and are not under the control of the licensee. ...
출처: www.nrc.gov/reading-rm/doc-collections/cfr/part020...
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| back |
The removable part of a medium or large-format camera that holds the film or the digital recording surface. "Backs" are attached to the back of the camera, hence their name. They shield the film from light except when exposed in the camera.
출처: photographytips.com/page.cfm/1591
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| backcross |
To cross-breed an organism, especially a plant hybrid, with one of its parents to preserve and augment the beneficial characteristics.
출처: www.biobasics.gc.ca/english/View.asp
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