accelerator factor vs proaccelerin

accelerator factor and proaccelerin both are nouns.

Word	Noun	Adjective	Verb	Adverb
accelerator factor	Yes	No	No	No
proaccelerin	Yes	No	No	No

As nouns, accelerator factor and proaccelerin are synonyms defined as:

Other synonyms of accelerator factor include factor V, prothrombin accelerator.

accelerator factor (noun)	proaccelerin (noun)
a coagulation factor	a coagulation factor