moving picture vs motion picture

moving picture and motion picture both are nouns.

Word	Noun	Adjective	Verb	Adverb
moving picture	Yes	No	No	No
motion picture	Yes	No	No	No

As nouns, moving picture and motion picture are synonyms defined as:

moving picture and motion picture: a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement

Other synonyms of moving picture include film, flick, motion-picture show, movie, moving-picture show, pic, picture, picture show.

moving picture (noun)	motion picture (noun)
a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement	a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement