'leukocyte' definitions:

Definition of 'leukocyte'

From: WordNet
noun
Blood cells that engulf and digest bacteria and fungi; an important part of the body's defense system [syn: leukocyte, leucocyte, white blood cell, white cell, white blood corpuscle, white corpuscle, WBC]

Synonyms of 'leukocyte'

From: Moby Thesaurus