interfacial vs interface

interfacial is not a noun while interface is a noun.

Word	Noun	Adjective	Verb	Adverb
interfacial	No	Yes	No	No
interface	Yes	No	No	No

interfacial (noun)	interface (noun)
	(chemistry) a surface forming a common boundary between two things (two objects or liquids or chemical phases)
	(computer science) computer circuit consisting of the hardware and associated circuitry that links one device with another (especially a computer and a hard disk drive or other peripherals)
	the overlap where two theories or phenomena affect each other or have links with each other
	(computer science) a program that controls a display for the user (usually on a computer monitor) and that allows the user to interact with the system

interfacial (adjective)	interface (adjective)
relating to or situated at an interface