noctilucous

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Definition

Shining or glowing in the dark; luminous at night; phosphorescent.

Example Usage

The noctilucous algae in the bay created an otherworldly blue glow as waves crashed on the shore.

Origin

From Latin nox (night) + lucēre (to shine).

Fun Fact

Bioluminescent organisms like dinoflagellates produce noctilucous displays through chemical reactions in their cells.

Source: Definition backfill (hailey)