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[personal profile] prettygoodword
noctilucent (nok-tuh-LOO-cuhnt) - adj., shining or glowing at night, especially of very high-altitude clouds that reflect sunlight long after sunset; nightshining.


nightshining clouds, long after sunset
Thanks, WikiMedia!

Also encompasses bioluminescent, but the clouds seem to be the primary meaning these days. Coined around 1890 from Latin roots that mean, literally, "night-shining."

---L.

Date: 2021-01-27 11:04 pm (UTC)
jesse_the_k: Flannery Lake is a mirror reflecting reds violets and blues at sunset (Rosy Rhinelander sunset)
From: [personal profile] jesse_the_k

Oh! We're lucky to be having these right now, because it's a severe clear day-7°F this morning, will be 0F overnight.

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