Definition of epiphenomenon
epiphenomenaplay \ˌe-pi-fi-ˈnä-mə-ˌnä, -nə\
: a secondary phenomenon accompanying another and caused by it; specifically : a secondary mental phenomenon that is caused by and accompanies a physical phenomenon but has no causal influence itself
First Known Use of epiphenomenon
Medical Definition of epiphenomenon
: an accidental or accessory event or process occurring in the course of a disease but not necessarily related to that disease
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