white blood cell vs WBC

white blood cell and WBC both are nouns.

Word	Noun	Adjective	Verb	Adverb
white blood cell	Yes	No	No	No
WBC	Yes	No	No	No

As nouns, white blood cell and WBC are synonyms defined as:

white blood cell and WBC: blood cells that engulf and digest bacteria and fungi; an important part of the body's defense system

Other synonyms of white blood cell include leucocyte, leukocyte, white blood corpuscle, white cell, white corpuscle.

white blood cell (noun)	WBC (noun)
blood cells that engulf and digest bacteria and fungi; an important part of the body's defense system	blood cells that engulf and digest bacteria and fungi; an important part of the body's defense system