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Learn a Word Daily — Noctilucent

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nok-tih-LOO-sent · adjective

Definition

Shining or glowing faintly in the night.
Relating to high-altitude clouds that are visible after sunset due to reflected sunlight.

Pronunciation

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Origin & Etymology

From Latin nox or noctis (“night”) and lucent- (“shining”), from lucere (“to shine”).

Nuance

Noctilucent is often used in poetic or scientific contexts to capture subtle, ghostly light against a dark sky.

Usage

“They watched the noctilucent clouds glimmer faintly above the dark horizon.”

Fun Fact

Real noctilucent clouds form at extremely high altitudes and can glow long after sunset, because they are still lit by the sun from below the horizon.

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