Neutrophil \Neu"tro*phil\, Neutrophile \Neu"tro*phile\, n. [L. neuter + Gr. ? loving.] (Physiol.) One of a group of leukocytes whose granules stain only with neutral dyes; it is the chief phagocytic leukocyte in the circulating blood, comprising from 54% to 65% of the total number of leukocytes. -- {Neu"tro*phil"ic}, a., {Neu*troph"i*lous}, a. [Webster 1913 Suppl.]