Medical Definition of Red blood cells. Red blood cells: The blood cells that carry oxygen. Red cells contain hemoglobin and it is the hemoglobin which permits them to transport oxygen (and carbon dioxide). Hemoglobin, aside from being a transport molecule, is a pigment. It gives the cells their red color (and their name).
Alexander Milne Calder (August 23, 1846 â June 4, 1923) was a Scottish American sculptor best known for the architectural sculpture of Philadelphia City Hall. Both his son, Alexander Stirling Calder, and grandson, Alexander Sandy Calder, became significant sculptors in the 20th century.
Tweet. Calder is used mostly in the English language and its language of origin is Welsh. The meaning of the name is violent stream. The first name is derived from an English surname, possiby from Calder in Cumbria.It is of the Welsh elements 'caled' (meaning violent, hard) and 'dwfr' (stream, water).The surname was borne by the American sculptor Alexander Calder (1898-1976), who invented mobile kinetic sculpture.he first name is derived from an English surname, possiby from Calder in Cumbria. It is of the Welsh elements 'caled' (meaning violent, hard) and 'dwfr' (stream, water). The surname was borne by the American sculptor Alexander Calder (1898-1976), who invented mobile kinetic sculpture.