surjection vs surjective function

surjection and surjective function both are nouns.

Word	Noun	Adjective	Verb	Adverb
surjection	Yes	No	No	No
surjective function	Yes	No	No	No

As nouns, surjection and surjective function are synonyms defined as:

surjection and surjective function: a mathematical function that is an onto mapping.

Other synonyms of surjection include onto function.

surjection (noun)	surjective function (noun)
a mathematical function that is an onto mapping.	a mathematical function that is an onto mapping.