monocyte vs white corpuscle

monocyte and white corpuscle both are nouns.

Word	Noun	Adjective	Verb	Adverb
monocyte	Yes	No	No	No
white corpuscle	Yes	No	No	No

As nouns, white corpuscle is a hypernym of monocyte; that is, white corpuscle is a word with a broader meaning than monocyte:

monocyte: a type of granular leukocyte that functions in the ingestion of bacteria
white corpuscle: blood cells that engulf and digest bacteria and fungi; an important part of the body's defense system

Other hypernyms of monocyte include leucocyte, leukocyte, WBC, white blood cell, white blood corpuscle, white cell.

monocyte (noun)	white corpuscle (noun)
a type of granular leukocyte that functions in the ingestion of bacteria	blood cells that engulf and digest bacteria and fungi; an important part of the body's defense system