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.
A blood count is a blood test that measures the numbers of each type of cell in your blood. It is also called a Complete Blood Count or CBC. Blood is a mixture of blood cells, salts, proteins and a watery fluid called plasma. has three main types of cells in it. The cells in your bone marrow make blood cells.