Definition
The emission of light by a substance that has not been heated, occurring through chemical reactions, bioluminescence, or other non-thermal processes. This includes phenomena like glowing fireflies, fluorescent dyes, and glow-in-the-dark materials.
Example Usage
The luminescence of the jellyfish created an ethereal glow in the dark ocean depths.
Origin
From Latin 'luminescere,' meaning 'to begin to shine,' derived from 'lumen' (light).
Fun Fact
Bioluminescence, used by creatures like anglerfish and fireflies, is an adaptation that evolved independently dozens of times.
Source: Definition backfill (hailey)
Related Terms
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