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Added 10 October 2026

coma

/ˈkəʊmə/ noun

In Latin: cōma Wiktionary

noun Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about coma at Wordnik → Where our words come from →

A state of unconsciousness from which one may not wake up, usually induced by some form of trauma.
go into a coma

noun

A cloud of dust surrounding the nucleus of a comet.
A defect characterized by diffuse, pear-shaped images that in an ideal image would appear as points.
A tuft or bunch, such as the assemblage of branches forming the head of a tree, a cluster of bracts when empty and terminating the inflorescence of a plant, or a tuft of long hairs on certain seeds.

Origin

Learned borrowing from Ancient Greek κῶμα (kôma, “deep sleep”).

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

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