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.
Kinghorn, Scotland. Alexander III, (born Sept. 4, 1241âdied March 18/19, 1286, near Kinghorn, Fife, Scot.) king of Scotland from 1249 to 1286, the last major ruler of the dynasty of kings descended from Malcolm III Canmore (reigned 1058â93), who consolidated royal power in Scotland.