Dictionary.net

• an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object; "the cinema relies on apparent motion"; "the succession of flashing lights gave an illusion of movement"

2006 - WordNet 3.0
By Princeton University

• an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object; "the cinema relies on apparent motion"; "the succession of flashing lights gave an illusion of movement"

2011 - English Dictionary Database
By DataStellar Co., Ltd