Polymorphonuclear leukocyte
Chapter: 2
This term refers primarily (and in the minds of some, exclusively) to neutrophils. The name derives from the multiple lobes of the mature neutrophil's nucleus. The eosinophil is bilobate and, to some, therefore, qualifies as a member of the PMN group. The basophil usually has a bean-shaped nucleus, but is characterized by some as being a polymorph.