Asteroids are celestial rocky bodies that orbit the sun. It was Sir William Herschel who first coined the term âasteroidâ (Greek for star-like) in 1802. He thought that Ceres and Pallas, discovered in 1801 by Giuseppe Piazzi and Heinrich Olbers respectively, were too small and were remnants of a destroyed planet.
blood cell. n. Any of the cells contained in blood; an erythrocyte or leukocyte; a blood corpuscle. blood cell. n. (Physiology) any of the cells that circulate in the blood. See erythrocyte, leucocyte.
The complete blood count is a blood test that counts the number of red blood cells, white blood cells, and platelets. The aforementioned blood components are suspended in plasma (the thick, pale yellow, fluid portion of blood). Automated machines in a laboratory rapidly count the various cell types. White Cells.