compressed vs biology

compressed is not a noun while biology is a noun.

Word	Noun	Adjective	Verb	Adverb
compressed	No	Yes	No	No
biology	Yes	No	No	No

compressed (noun)	biology (noun)
	the science that studies living organisms
	all the plant and animal life of a particular region
	characteristic life processes and phenomena of living organisms

compressed (adjective)	biology (adjective)
pressed tightly together
reduced in volume by pressure
flattened laterally along the whole length (e.g., certain leafstalks or flatfishes)