erythrocyte sedimentation rate

Medical Dictionary

erythrocyte sedimentation rate n.

Abbr. ESR The rate at which red blood cells settle in blood with anticoagulant; increased rates are often associated with anemia or inflammatory states.

The American Heritage® Stedman's Medical Dictionary
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WordNet
erythrocyte sedimentation rate

noun
the rate at which red blood cells settle out in a tube of blood under standardized conditions; a high rate usually indicates the presence of inflammation 
WordNet® 3.0, © 2006 by Princeton University.
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