bioluminescence

/ˌbaɪ̯oʊ̯ˌluməˈnɛsəns/

bioluminescence means the emission of light by a living organism (such as a firefly).

bioluminescence is pronounced /ˌbaɪ̯oʊ̯ˌluməˈnɛsəns/.

Why “bioluminescence” is a great word

The emission of light produced by a biochemical reaction within a living organism. From the combining form bio- (from Greek bios, meaning 'life') + luminescence (from Latin lumen, meaning 'light'), first recorded in English in 1909. Unlike phosphorescence (the lingering, borrowed glow of irradiated minerals) or incandescence (the fiery, wasted heat of a filament), bioluminescence is a cold, private fire brewed from within. It is the ghostly constellation of a midnight sea churned by a ship’s wake, the foxfire’s green decay on a rotting forest log, the coded flash of a firefly in the deep summer grass—a silent, living language written in photons against the overwhelming dark.

noun

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

Words closest in meaning

By meaning, not spelling — each word's AI semantic fingerprint, nearest first.

phosphorescence 88% match — The emission of light without any perceptible heat; the quality of being phosphorescent. vs bioluminescence →
noctiluca 88% match — A firefly, glowworm. vs bioluminescence →
luminesce 87% match — To give off light, including in the invisible electromagnetic radiation frequencies, or become luminescent. vs bioluminescence →
incandescence 86% match — the emission of visible light by a hot body vs bioluminescence →
phosphoresce 84% match — To exhibit phosphorescence vs bioluminescence →
glowworm 84% match — The larva or wingless grub-like female of a beetle from the families Phengodidae or Lampyridae that gives out a green light from its abdomen. vs bioluminescence →
mareel 83% match — Phosphorescence on the ocean. vs bioluminescence →
incandescent 83% match — Emitting light as a result of being heated. vs bioluminescence →