granule vs microsome

granule and microsome both are nouns.

Word	Noun	Adjective	Verb	Adverb
granule	Yes	No	No	No
microsome	Yes	No	No	No

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

granule: a tiny grain
microsome: a tiny granule in the cytoplasm that is where protein synthesis takes place under the direction of mRNA

Other hyponyms of granule include chondrule, plastid.

granule (noun)	microsome (noun)
a tiny grain	a tiny granule in the cytoplasm that is where protein synthesis takes place under the direction of mRNA