catalyst vs biocatalyst

catalyst and biocatalyst both are nouns.

Word	Noun	Adjective	Verb	Adverb
catalyst	Yes	No	No	No
biocatalyst	Yes	No	No	No

As nouns, biocatalyst is a hyponym of catalyst; that is, biocatalyst is a word with a more specific, narrower meaning than catalyst:

catalyst: (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
biocatalyst: a biochemical catalyst such as an enzyme

Other hyponyms of catalyst include enzyme, platinum black.

catalyst (noun)	biocatalyst (noun)
something that causes an important event to happen	a biochemical catalyst such as an enzyme
(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected