coma
Proposed by a contributor, not yet supported by evidence.
Also seen as: comas · comae
Sense 1
A state of unconsciousness from which one may not wake up, usually induced by some form of trauma.
Noun
Examples
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
A cloud of dust surrounding the nucleus of a comet.
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 3
A defect characterized by diffuse, pear-shaped images that in an ideal image would appear as points.
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “coma” mean?
A state of unconsciousness from which one may not wake up, usually induced by some form of trauma.
Is “coma” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.