epiphenomenon.

1. A secondary event that arises from, or accompanies, another event or underlying process.

2. A mental event understood as produced by physical activity but exerting no causal influence of its own.

3. An additional event occurring during a disease without necessarily having a causal connection to that disease.

Use it for

Words that belong together

• an epiphenomenon of change
• a secondary epiphenomenon
• treat as an epiphenomenon

On the page

The flickering lights were an epiphenomenon of the reactor fault, not its cause.

Analysts treated the surge in chatter as an epiphenomenon of the larger political shift.

Usage notes

Primary category: sci-fi literary / speculative. Lexical Type: Word. Forms: Singular epiphenomenon; plural epiphenomena. Commonness: uncommon (editorial estimate; not a corpus frequency statistic). Legacy lexical fields mirror sense 1; numbered fields keep each relevant meaning separate. Research distinction: Three dictionary senses directly read: secondary event caused by or accompanying another; philosophical mental phenomenon caused physically with no causal influence; accessory event during disease not necessarily causally related. Plural epiphenomena. Individual usefulness checked for a distinct speculative-writing function. Original definitions and examples; hypothetical theories and fictional applications are not presented as established findings. No inherent mood or intensity is assigned. Writing functions: secondary effects versus causes, causal status of mental events.