What is another word for apparent motion?
Pronunciation: [ɐpˈaɹənt mˈə͡ʊʃən] (IPA) 
Apparent motion is a term used in physics and astronomy to describe the illusion of movement an object seems to make when observed from a certain perspective. You can use alternative words for apparent motion such as apparent movement, perceived motion, or illusory motion. Another synonym is optical illusion, which denotes the tricking of the human eye into seeing something that isn't actually there. Parallax, meaning the apparent displacement of an object caused by a shift in the observer's position, can also describe apparent motion. Lastly, relative motion can be used to indicate the movement of an observed object in relation to other objects or the observer themselves.
