Also found in: Thesaurus, Medical, Financial, Encyclopedia, Wikipedia.
Related to basophil: eosinophil, monocyte, lymphocyte


 (bā′sə-fĭl, -zə-) also ba·so·phile (-fīl′, -fĭl)
A white blood cell that when activated releases histamine and other substances that are involved in allergic reactions. Basophils are found chiefly in the blood and sites of inflammation and have cytoplasmic granules that are stained with basic dyes.


(ˈbeɪsəfɪl) or


(Biology) (of cells or cell contents) easily stained by basic dyes
(Biology) a basophil cell, esp a leucocyte
[C19: from Greek; see base1 + -phile]


(ˈbeɪ sə fɪl)

also ba•so•phile

(-ˌfaɪl, -fɪl)

1. a basophilic cell, tissue, organism, or substance.
2. a white blood cell having a two-lobed nucleus and basophilic granules in its cytoplasm.
[1885–90; bas (ic dye) + -o- + -phil]


A type of white blood cell readily stained by basic dyes.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.basophil - a leukocyte with basophilic granules easily stained by basic stains
leucocyte, leukocyte, WBC, white blood cell, white blood corpuscle, white cell, white corpuscle - blood cells that engulf and digest bacteria and fungi; an important part of the body's defense system
References in periodicals archive ?
Vancomycin-induced release of histamine from rat peritoneal mast cells and a rat basophil cell line (RBL-1).
In some patients, anti-FceRI, anti-lgE, or other factors are capable of causing basophil activation and serum-induced histamine release from basophils.
In contrast, the basophil count showed slightly low mean values in patients (0.
They also offer a selection of unique, high-quality assays for routine use such as the BUHLMANN Flow CAST[R] product group for Basophil Activation Testing, the BUHLMANN GanglioCombi[TM] products, and a variety of Melatonin Assays.
However, a complex reciprocal interaction was noted between endotoxin and smoking in the relationship to eosinophil and basophil counts (Table 3).
Aluminium phosphide elicited effects on the haematological parameters of the fish such as a decrease in Hb when compared to the control; reduction of MCV, MCH and MCHC to all exposed concentration of aluminium phosphide, significant increase in neutrophil, basophil, eosinophil and monocytes throughout the duration of exposure and decrease in the lymphocytes.
There is statistical significant difference between primary and secondary polycythaemia in TLC, platelets, MCV, MCH and basophil count.
Basophils displayed dysplastic features previously reported in acute myeloid leukemia (AML)[9] (Figure 2C): (1) partial degranulation demonstrated as empty vacuoles near the plasma membrane with a diffuse basophilic degranulated material surrounding the basophil (arrowhead in Figure 2C) and (2) large, coarse basophilic granules unevenly distributed in the cytoplasm.
Basophil values found in group 2 were similar to those values observed for other psittacine birds.