arcsec vs inverse secant

arcsec and inverse secant both are nouns.

Word	Noun	Adjective	Verb	Adverb
arcsec	Yes	No	No	No
inverse secant	Yes	No	No	No

As nouns, arcsec and inverse secant are synonyms defined as:

arcsec and inverse secant: the inverse function of the secant; the angle that has a secant equal to a given number

Other synonyms of arcsec include arc secant, arcsecant.

arcsec (noun)	inverse secant (noun)
the inverse function of the secant; the angle that has a secant equal to a given number	the inverse function of the secant; the angle that has a secant equal to a given number