# bioluminescence

> English word · Noun · IPA /ˌbaɪ̯oʊ̯ˌluməˈnɛsəns/ · frequency rank #81,168

## Definitions
1. The emission of light by a living organism (such as a firefly).

## Etymology
From bio- + luminescence.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/bioluminescence