blood pudding vs black pudding

blood pudding and black pudding both are nouns.

Word	Noun	Adjective	Verb	Adverb
blood pudding	Yes	No	No	No
black pudding	Yes	No	No	No

As nouns, blood pudding and black pudding are synonyms defined as:

blood pudding and black pudding: a black sausage containing pig's blood and other ingredients

Other synonyms of blood pudding include blood sausage.

blood pudding (noun)	black pudding (noun)
a black sausage containing pig's blood and other ingredients	a black sausage containing pig's blood and other ingredients