1the state of being full of life or vigour; liveliness:they started talking with animation
chiefly archaic the state of being alive:the body began to show tiny signs of animation
2the technique of photographing successive drawings or positions of puppets or models to create an illusion of movement when the film is shown as a sequence:a combination of live action with 3-D animation [count noun]:animations as backdrops for live action
(also computer animation) the manipulation of electronic images by means of a computer in order to create moving images.
animation in other Oxford dictionaries
Definition of animation in the US English dictionary