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LEUKOCYTE
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I. (noun)
Sense 1
Meaning:
Blood cells that engulf and digest bacteria and fungi; an important part of the body's defense system
Synonyms:
leucocyte; leukocyte; WBC; white blood cell; white blood corpuscle; white cell; white corpuscle
Classified under:
Hypernyms ("leukocyte" is a kind of...):
blood cell; blood corpuscle; corpuscle (either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets)
free phagocyte (a phagocyte that circulates in the blood)
Hyponyms (each of the following is a kind of "leukocyte"):
myelocyte (an immature leukocyte normally found in bone marrow)
myeloblast (a precursor of leukocytes that normally occurs only in bone marrow)
lymph cell; lymphocyte (an agranulocytic leukocyte that normally makes up a quarter of the white blood cell count but increases in the presence of infection)
granulocyte (a leukocyte that has granules in its cytoplasm)
monocyte (a type of granular leukocyte that functions in the ingestion of bacteria)
basophil; basophile (a leukocyte with basophilic granules easily stained by basic stains)
neutrophil; neutrophile (the chief phagocytic leukocyte; stains with either basic or acid dyes)
eosinophil; eosinophile (a leukocyte readily stained with eosin)
Context examples:
A relative measurement (ratio or percentage) of the atypical lymphocytes to leukocytes in a biological specimen.
(Atypical Lymphocyte to Leukocyte Ratio, NCI Thesaurus/CDISC)
CD44 interaction of leukocytes with hyaluronan in the extracellular matrix is induced by inflammation.
(Monocyte Phagocytosis and Adhesion Pathway, NCI Thesaurus/BIOCARTA)
The determination of the ratio of monocytes compared to leukocytes in a blood sample.
(Monocyte to Leukocyte Ratio, NCI Thesaurus)
A peptide cancer vaccine comprised of human leukocyte antigen HLA-A2-restricted peptide derived from a metastatic melanoma cell line of patient NA17, with potential immunomodulating and antineoplastic activity.
(NA17.A2 Peptide Vaccine, NCI Thesaurus)
Any process that decreases the frequency, rate or extent of apoptosis in leukocytes.
(Negative Regulation of Immune Cell Destruction, NCI Thesaurus)
Inflammation is induced by release of vasodilatory, opsonizing, and chemotactic mediators that attract phagocytizing macrophages and leukocytes; dilate local blood vessels, increasing local blood flow and capillary permeability; and induce pain.
(Negative Regulation of Inflammatory Response Process, NCI Thesaurus)
The determination of the ratio of band neutrophils compared to leukocytes in a blood sample.
(Neutrophil Band Form to Leukocyte Ratio, NCI Thesaurus)
A relative measurement (ratio or percentage) of the myelocytes to leukocytes in a biological specimen.
(Myelocyte to Leukocyte Ratio, NCI Thesaurus/CDISC)
The determination of the ratio of myelocytes compared to leukocytes in a blood sample.
(Myelocyte to Leukocyte Ratio, NCI Thesaurus)
A relative measurement (ratio or percentage) of the monocytes to leukocytes in a biological specimen.
(Monocyte to Leukocyte Ratio, NCI Thesaurus/CDISC)
