equatorial vs pantropical

equatorial is a noun but pantropical is not a noun.

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

equatorial (noun)	pantropical (noun)
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

equatorial (adjective)	pantropical (adjective)
of or existing at or near the geographic equator	distributed throughout the tropics
of or relating to conditions at the geographical equator
of or relating to or at an equator