motion

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: 
very easy
toefl frequency: 
2
toefl classification: 
adverb: 
adjective: 
adverb sentence: 
adjective sentence: 
verb: 
motion
verb sentence: 
noun: 
motion
noun sentence: