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».
A circus is a place of entertainment, stereotypically staged in a tent or arena. It is also the name of a 2008 song by Britney Spears. The name comes from the Latin word fâ¦or circle, from the circular construction of Roman arenas, which featured spectacles such as gladiatorial duels and chariot races.