Dictionary Meaning and Definition on 'Leukocyte'
n : blood cells that engulf and digest bacteria and fungi; an
important part of the body's defense system [syn: leucocyte,
white blood cell, white cell, white blood corpuscle,
white corpuscle, WBC]
Wikipedia Meaning and Definition on 'Leukocyte'
White blood cells, or leukocytes (also spelled "leucocytes," "leuco-" being Greek for white), are cells of the immune system involved in defending the body against both infectious disease and foreign materials. Five
The number of WBCs in the blood is often an indicator of disease. There are normally between 4×109 and 1.1×1010 white blood cells in a litre of blood, making up approximately 1% of blood in a healthy adult. An increase in the number of leukocytes over the upper limits is called leukocytosis, and a decrease below the lower limit is called leukopenia. The physical properties of leukocytes, such as volume, conductivity, and granularity, may change due to activation, the presence of immature cells, or the presence of malignant leukocytes in leukemia.
The name "white blood cell" derives from the fact that after centrifugation of a blood sample, the white cells are found in the buffy coat, a thin, typically white layer of nucleated cells between the sedimented red blood cells and the blood plasma. The scientific term leukocyte directly reflects this description, derived from Greek λευκό (white), and κύτταρο (cell). Blood plasma may sometimes be green if there are large amounts of neutrophils in the sample, due to the heme-containing enzyme myeloperoxidase that they produce.[See more about Leukocyte at Dictionary 3.0 Encyclopedia]
Words and phrases related to 'Leukocyte'
Leukocyte Sample Sentences in News
- Is the next 'new' cancer drug already in your medicine cabinet?
( Federation of American Societies for Experimental Biology ) The same types of drugs that help reduce watery eyes and runny noses during allergy season might also help ward off tumors too. A new research report appearing in the July 2014 issue of the Journal of Leukocyte Biology suggests that antihistamines may have significant anti-cancer properties as they inte Read more on this news related to 'Leukocyte'
- Press Release
CEL-SCI Corporation (NYSE MKT:CVM) today announced that Sri Lankaâ€™s Ministry of Health has cleared the Company to commence patient enrollment for its Phase III Head and Neck Cancer clinical trial of its investigational cancer immunotherapy treatment Multikine* (Leukocyte Interleukin Injection) in Sri Lanka. Read more on this news related to 'Leukocyte'