corpuscle vs blood cell

corpuscle and blood cell both are nouns.

Word	Noun	Adjective	Verb	Adverb
corpuscle	Yes	No	No	No
blood cell	Yes	No	No	No

As nouns, corpuscle and blood cell are synonyms defined as:

corpuscle and blood cell: either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets

Other synonyms of corpuscle include blood corpuscle.

corpuscle (noun)	blood cell (noun)
either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets	either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets
(nontechnical usage) a tiny piece of anything