definition
the act of changing location; an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object
sentence
The robot is trained to increase the frequency of motions that cause smiles and minimize the motions that don't.
The camera system in the new smartphone keeps a buffer of a second and a half’s worth of motion frames before and after you take the photo.
difficulty
easy
toefl frequency
2
toefl classification
verb
motion
noun
motion