| sediment |
Topsoil, sand, and minerals washed from the land into water, usually after rain or snow melt. Sediments collecting in rivers, reservoirs, and harbors can destroy fish and wildlife habitat and cloud the water so that sunlight cannot reach aquatic plants. Loss of topsoil from farming, mining, or building activities can be prevented through a variety of erosion-control techniques.
출처: www.nsc.org/ehc/glossar2.htm
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| sed rate |
(noun) lab test of speed at which erythrocytes settle. Blood to which an anticoagulant has been added is placed in a long tube and the distance the red cells fall in one hour is the rate (ESR) . The speed at which cells settle depends on the size of the clumps into which the red cells aggregate, and the size of clumps appears to depend on the amount of fibrinogen in the blood. It is a non-specific indicator of disease, esp. ...
출처: www.orgsites.com/fl/adjuvantdisease/_pgg9.php3
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| sedentary |
remaining in one area; not active
출처: www.kentuckyawake.org/templates/glossary/
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| sedative |
a drug that reduces mental activity and excitement and/or induces sleep.
출처: www.sfaf.org/treatment/beta/b36/b36glos.html
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| sedimentation |
settling of particulate matter in water related to particle size, water velocity, and water flow.
출처: www.nps.gov/plants/restore/library/glossary.htm
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