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Added 10 October 2026

cumulus

/ˈkjuːmjʊləs/ noun

In Latin: cumulus Coined: 1772, by Luke Howard Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about cumulus at Wordnik → Where our words come from →

A globular cloud.
A collection of objects laid on top of each other.

Origin

Learned borrowing from Latin cumulus. Doublet of comble. Sense 2 (“type of cloud”) was coined by the British chemist and amateur meteorologist Luke Howard (1772–1864): see the 1803 quotation.

From Wiktionary, via Kaikki.org (CC BY-SA)

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