pore vs porous

pore is a noun but porous is not a noun.

Word	Noun	Adjective	Verb	Adverb
pore	Yes	No	Yes	No
porous	No	Yes	No	No

pore (noun)	porous (noun)
any small opening in the skin or outer surface of an animal
a minute epidermal pore in a leaf or stem through which gases and water vapor can pass
any tiny hole admitting passage of a liquid (fluid or gas)

pore (adjective)	porous (adjective)
	full of pores or vessels or holes
	allowing passage in and out
	able to absorb fluids

pore (verb)	porous (verb)
direct one's attention on something