| back |
A bird's back begins at the nape and ends at the rump. Ordinarily it is similar in color to the wings and head, although there are (as always) exceptions, such as the Downy Woodpecker with its outstanding white back. Within the back, much of the vertebra are fused together and many muscles are reduced or absent, which means that birds must rely on the neck for most upper-body flexibility. ...
출처: www.geocities.com/easternbirds/Glossary.html
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| back pressure |
The pressure remaining when a piston exhausts steam, against which the steam taken in must work.
출처: www.geocities.com/gold27ca/glossary.html
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| backup |
A copy of a file, a set of files, or whole disk for safekeeping in case the original is lost or damaged.
출처: www.geocities.com/CapeCanaveral/1224/terms/esri_gl...
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| bacteria |
A large group of single-cell microorganisms. Some cause infections and disease in animals and humans. The singular of bacteria is bacterium.
출처: www.stjude.org/glossary
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| background activity |
in measurements of physical or physiological processes, the ongoing generalized, sometimes artifactual, activity from which the more specific activity in question must be distinguished.
출처: www.merckmedicus.com/pp/us/hcp/thcp_dorlands_conte...
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