acanthocyte vs erythrocyte

acanthocyte and erythrocyte both are nouns.

Word	Noun	Adjective	Verb	Adverb
acanthocyte	Yes	No	No	No
erythrocyte	Yes	No	No	No

As nouns, erythrocyte is a hypernym of acanthocyte; that is, erythrocyte is a word with a broader meaning than acanthocyte:

acanthocyte: an abnormal red blood cell that has thorny projections of protoplasm
erythrocyte: a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues; a biconcave disc that has no nucleus

Other hypernyms of acanthocyte include RBC, red blood cell.

acanthocyte (noun)	erythrocyte (noun)
an abnormal red blood cell that has thorny projections of protoplasm	a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues; a biconcave disc that has no nucleus