terrestrial planet vs Venus

terrestrial planet and Venus both are nouns.

Word	Noun	Adjective	Verb	Adverb
terrestrial planet	Yes	No	No	No
Venus	Yes	No	No	No

terrestrial planet (noun)	Venus (noun)
a planet having a compact rocky surface like the Earth's; the four innermost planets in the solar system	type genus of the family Veneridae: genus of edible clams with thick oval shells
	the second nearest planet to the sun; it is peculiar in that its rotation is slow and retrograde (in the opposite sense of the Earth and all other planets except Uranus); it is visible from Earth as an early `morning star' or an `evening star'
	goddess of love; counterpart of Greek Aphrodite