tropic vs equatorial

tropic and equatorial both are nouns.

Word	Noun	Adjective	Verb	Adverb
tropic	Yes	Yes	No	No
equatorial	Yes	Yes	No	No

tropic (noun)	equatorial (noun)
either of two parallels of latitude about 23.5 degrees to the north and south of the equator representing the points farthest north and south at which the sun can shine directly overhead and constituting the boundaries of the Torrid Zone or tropics	a telescope whose mounting has only two axes of motion, one parallel to the Earth's axis and the other one at right angles to it

tropic (adjective)	equatorial (adjective)
relating to or situated in or characteristic of the tropics (the region on either side of the equator)	of or existing at or near the geographic equator
of weather or climate; hot and humid as in the tropics	of or relating to conditions at the geographical equator
	of or relating to or at an equator