arcsine vs inverse sine

arcsine and inverse sine both are nouns.

Word	Noun	Adjective	Verb	Adverb
arcsine	Yes	No	No	No
inverse sine	Yes	No	No	No

As nouns, arcsine and inverse sine are synonyms defined as:

arcsine and inverse sine: the inverse function of the sine; the angle that has a sine equal to a given number

Other synonyms of arcsine include arc sine, arcsin.

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