terrestrial vs aquatic

terrestrial is not a noun while aquatic is a noun.

Word	Noun	Adjective	Verb	Adverb
terrestrial	No	Yes	No	No
aquatic	Yes	Yes	No	No

terrestrial (noun)	aquatic (noun)
	a plant that lives in or on water

terrestrial (adjective)	aquatic (adjective)
operating or living or growing on land	operating or living or growing in water
of or relating to or inhabiting the land as opposed to the sea or air	relating to or consisting of or being in water
of or relating to or characteristic of the planet Earth or its inhabitants
of this earth
concerned with the world or worldly matters