Basophilia: An abnormal increase in the number of basophils.
Basophilic: Staining readily with basic dyes, for example, blue with Ramanovsky type
stains.
Binary Fission: Simple cell division.
Bleeding Time: The
time required for a
small standardized wound, made in
the
capillary bed of the finger or ear lobe, to stop bleeding.
Blood Dyscrasia: A disease of the blood or blood-forming organs.
Buffy Coat: The layer of leukocytes that collects immediately above the erythrocytes in
sedimented or centrifuged whole blood.
Cabot's Rings: Lines in the form of loops or figures-of-eight seen in erythrocytes in
severe anemias.
Centriole: A minute cell organoid within the centrosome.
Centrosome: An area of condensed cytoplasm active in mitosis.
Chemotaxis: the phenomenon of movement of leukocytes caused by a chemical
influence.
Chromatin: The more stainable portion of the cell nucleus contains genetic materials.
Clot Retraction: The rate and degree of contraction of the blood clot.
Coagulation Time: The time required for venous blood, in the absence of all tissue
factors, to clot in glass tubes under controlled conditions.
Cocatalyst: A substance that works in tandem with another group of chemicals to
accelerate a reaction velocity without being used up in the reaction.
Color Index: The ratio between the amount of hemoglobin and the number of red
blood cells.
Complete Blood Count: A hematology study which consists of a red cell count, white
cell count, hematocrit, hemoglobin, and blood smear study including differential white
cell count.
Congenital: Born with a person; existing at or before birth.
MD0853
A-2