eosinophile vs white cell

eosinophile and white cell both are nouns.

Word	Noun	Adjective	Verb	Adverb
eosinophile	Yes	No	No	No
white cell	Yes	No	No	No

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

eosinophile: a leukocyte readily stained with eosin
white cell: blood cells that engulf and digest bacteria and fungi; an important part of the body's defense system

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

eosinophile (noun)	white cell (noun)
a leukocyte readily stained with eosin	blood cells that engulf and digest bacteria and fungi; an important part of the body's defense system