Added 10 October 2026 autokinesis noun Categories: Obscure Words noun ! Definition from Wiktionary (CC BY-SA). More about autokinesis at Wordnik → Where our words come from → A visual illusion in which a stationary source of light appears to move. Spontaneous or voluntary movement; movement due to an internal cause. Origin From auto- + -kinesis. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: autocinesisphotokinesischronostasisvectionoptokinesisechokinesisheautoscopychromostereopsis Back to today's word