plasmablast vs plasmacyte

plasmablast and plasmacyte both are nouns.

Word	Noun	Adjective	Verb	Adverb
plasmablast	Yes	No	No	No
plasmacyte	Yes	No	No	No

As nouns, plasmacyte is a hypernym of plasmablast; that is, plasmacyte is a word with a broader meaning than plasmablast:

plasmablast: the precursor of a plasma cell
plasmacyte: a cell that develops from a B lymphocyte in reaction to a specific antigen; found in bone marrow and sometimes in the blood

Other hypernyms of plasmablast include plasma cell.

plasmablast (noun)	plasmacyte (noun)
the precursor of a plasma cell	a cell that develops from a B lymphocyte in reaction to a specific antigen; found in bone marrow and sometimes in the blood