erythrocyte sedimentation rate (ESR), the rate at which red blood cells settle out in a tube of unclotted blood, expressed in millimeters per hour. Blood is collected in an anticoagulant and allowed to form a sediment in a calibrated glass column.
The Butterfly Circus (2009) The Butterfly Circus is the story of a renowned circus troupe traveling through the devastated American landscape at the height of the Great Depression, lifting the spirits of audiences ... See full summary Â».
In early Christianity, the butterfly was a symbol of the soul. In China, it was used as a symbol of conjugal bliss and joy. The butterfly was particularly revered by the tribes of the American southwest. Its dance is performed by both Navajo and Hopis.