alchemy vs pseudoscience

alchemy and pseudoscience both are nouns.

Word	Noun	Adjective	Verb	Adverb
alchemy	Yes	No	No	No
pseudoscience	Yes	No	No	No

As nouns, pseudoscience is a hypernym of alchemy; that is, pseudoscience is a word with a broader meaning than alchemy:

alchemy: a pseudoscientific forerunner of chemistry in medieval times
pseudoscience: an activity resembling science but based on fallacious assumptions

alchemy (noun)	pseudoscience (noun)
a pseudoscientific forerunner of chemistry in medieval times	an activity resembling science but based on fallacious assumptions
the way two individuals relate to each other