coma

1 of 2

noun (1)

co·​ma ˈkō-mə How to pronounce coma (audio)
1
: a state of profound unconsciousness caused by disease, injury, or poison
2
: a state of mental or physical sluggishness : torpor

coma

2 of 2

noun (2)

plural comae ˈkō-ˌmē How to pronounce coma (audio)
-ˌmī
1
: a tufted bunch (as of branches, bracts, or seed hairs)
2
: the head of a comet consisting of a cloud of gas and dust and usually containing a nucleus
3
: an optical aberration in which the image of a point source is a comet-shaped blur
comatic adjective

Examples of coma in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
After her stroke, O'Neal remained hospitalized in a coma for six weeks, and she was left with lingering aphasia, which impacted her ability to speak, read and write. Ashley Hume, Fox News, 28 Feb. 2025 One man ended up in a coma as a result of allegedly being sedated by Aurora. Brenton Blanchet, People.com, 27 Feb. 2025 One man was left in a coma after his encounter with Aurora and three others died, according to the FBI. Noah Goldberg, Los Angeles Times, 24 Feb. 2025 The one living victim mentioned in the indictment survived and emerged from a five-day coma after Phelps allegedly administered large amounts of prescription sedatives to him over the course of a week, Evans said. Rebekah Riess, CNN, 23 Feb. 2025 See All Example Sentences for coma

Word History

Etymology

Noun (1)

New Latin, from Greek kōma deep sleep

Noun (2)

Latin, hair, from Greek komē

First Known Use

Noun (1)

1646, in the meaning defined at sense 1

Noun (2)

1669, in the meaning defined at sense 1

Time Traveler
The first known use of coma was in 1646

Browse Nearby Words

Cite this Entry

“Coma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coma. Accessed 6 Mar. 2025.

Kids Definition

coma

1 of 2 noun
co·​ma ˈkō-mə How to pronounce coma (audio)
: a sleeplike state of unconsciousness caused by disease, injury, or poison

coma

2 of 2 noun
plural comae -ˌmē How to pronounce coma (audio)
-ˌmī
: the head of a comet made up of a cloud of gas and dust and usually containing a nucleus
Etymology

Noun

scientific Latin, from Greek kōma "deep sleep"

Noun

from Latin coma "hair," from Greek komē "hair" — related to comet

Medical Definition

coma

noun
co·​ma ˈkō-mə How to pronounce coma (audio)
: a state of profound unconsciousness caused by disease, injury, or poison

More from Merriam-Webster on coma

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