animalcule vs organism

animalcule and organism both are nouns.

Word	Noun	Adjective	Verb	Adverb
animalcule	Yes	No	No	No
organism	Yes	No	No	No

As nouns, organism is a hypernym of animalcule; that is, organism is a word with a broader meaning than animalcule:

animalcule: microscopic organism such as an amoeba or paramecium
organism: a living thing that has (or can develop) the ability to act or function independently

Other hypernyms of animalcule include being.

animalcule (noun)	organism (noun)
microscopic organism such as an amoeba or paramecium	a living thing that has (or can develop) the ability to act or function independently
	a system considered analogous in structure or function to a living body