noun · 7 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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UK:/ˈkəʊmə/
Southern-England:Recorded audio is listed in the source snapshot.
US:kōʹmə
US:/ˈkoʊmə/
rhymes with -əʊmə
homophone: comber (non-rhotic)
CMU ARPABET:K OW1 M AH0
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
A state of unconsciousness from which one may not wake up, usually induced by some form of trauma.
Definition source: English Wiktionary via Wiktextract
Examples
go into a coma
slip into a coma
come out of a coma
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
A cloud of dust surrounding the nucleus of a comet.
Definition source: English Wiktionary via Wiktextract
Topics: astronomy, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
A defect characterized by diffuse, pear-shaped images that in an ideal image would appear as points.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
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.
Definition source: English Wiktionary via Wiktextract
Topics: biology, botany, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
noun
Meaning 5
a state of deep and often prolonged unconsciousness; usually the result of disease or injury
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: comatoseness
Antonyms: none provided
Broader terms: unconsciousness
Narrower terms: diabetic coma, Kussmaul's coma, hepatic coma
6
noun
Meaning 6
(astronomy) the luminous cloud of particles surrounding the frozen nucleus of a comet; forms as the comet approaches the sun and is warmed
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: cloud
7
noun
Meaning 7
(botany) a usually terminal tuft of bracts (as in the pineapple) or tuft of hairs (especially on certain seeds)
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: tuft, tussock
History
Etymology
Learned borrowing from Ancient Greek κῶμα (kôma, “deep sleep”).
Learned borrowing from Latin coma (“hair of the head”), from Ancient Greek κόμη (kómē, “hair”).
Across languages
Translations
88 source translations are retained for this English entry.
Arabic:
غَيْبُوبَة
(ḡaybūba)
— Deep sleep
Armenian:
կոմա
(koma)
— Deep sleep
Azerbaijani:
koma
— Deep sleep
Belarusian:
ко́ма
(kóma)
— Deep sleep
Bulgarian:
ко́ма
(kóma)
— Deep sleep
Catalan:
coma
— Deep sleep
Chinese Mandarin:
昏迷
(hūnmí)
— Deep sleep
Chinese Mandarin:
昏睡
(hūnshuì)
— Deep sleep
Czech:
bezvědomí
— Deep sleep
Czech:
kóma
— Deep sleep
Danish:
koma
— Deep sleep
Dutch:
coma
— Deep sleep
Esperanto:
komato
— Deep sleep
Estonian:
kooma
— Deep sleep
Faroese:
óvit
— Deep sleep
Finnish:
kooma
— Deep sleep
Finnish:
tajuttomuus
— Deep sleep
French:
coma
— Deep sleep
Galician:
coma
— Deep sleep
Georgian:
კომა
(ḳoma)
— Deep sleep
German:
Koma
— Deep sleep
Greek:
κώμα
(kóma)
— Deep sleep
Ancient Greek:
κῶμα
(kôma)
— Deep sleep
Hebrew:
תַּרְדֶּמֶת
(tardemet)
— Deep sleep
Hindi:
कोमा
(komā)
— Deep sleep
Hungarian:
kóma
— Deep sleep
Icelandic:
dá
— Deep sleep
Icelandic:
svefndá
— Deep sleep
Icelandic:
dauðadá
— Deep sleep
Indonesian:
koma
— Deep sleep
Italian:
coma
— Deep sleep
Japanese:
昏睡
(konsui)
— Deep sleep
Kazakh:
кома
(koma)
— Deep sleep
Korean:
혼수
(honsu)
— Deep sleep
Kyrgyz:
кома
(koma)
— Deep sleep
Lao:
ອະສັນ
(ʼa san)
— Deep sleep
Latin:
cōma
— Deep sleep
Latvian:
koma
— Deep sleep
Lithuanian:
koma
— Deep sleep
Luxembourgish:
Koma
— Deep sleep
Macedonian:
ко́ма
(kóma)
— Deep sleep
Māori:
mauringaro
— Deep sleep
Māori:
maurimate
— Deep sleep
Mongolian:
ухаангүй
(uxaangüj)
— Deep sleep
Norwegian Bokmål:
koma
— Deep sleep
Norwegian Nynorsk:
koma
— Deep sleep
Persian:
کما
(komâ)
— Deep sleep
Polish:
śpiączka
— Deep sleep
Polish:
koma
— Deep sleep
Portuguese:
coma
— Deep sleep
Romanian:
comă
— Deep sleep
Russian:
ко́ма
(kóma)
— Deep sleep
Serbo-Croatian:
ко̏ма
— Deep sleep
Serbo-Croatian:
kȍma
— Deep sleep
Slovak:
bezvedomie
— Deep sleep
Slovak:
kóma
— Deep sleep
Slovene:
koma
— Deep sleep
Spanish:
coma
— Deep sleep
Swedish:
koma
— Deep sleep
Tajik:
кома
(koma)
— Deep sleep
Tamil:
ஆழ்மயக்கம்
(āḻmayakkam)
— Deep sleep
Thai:
โคม่า
(koh-mâa)
— Deep sleep
Turkish:
koma
— Deep sleep
Turkmen:
koma
— Deep sleep
Ukrainian:
ко́ма
(kóma)
— Deep sleep
Urdu:
کوما
(komā)
— Deep sleep
Uzbek:
koma
— Deep sleep
Vietnamese:
hôn mê
— Deep sleep
Welsh:
côma
— Deep sleep
Bulgarian:
глава
(glava)
— Cloud surrounding a comet nucleus
Catalan:
cabellera
— Cloud surrounding a comet nucleus
Chinese Mandarin:
彗髮 /彗发
(huìfà)
— Cloud surrounding a comet nucleus
Czech:
koma
— Cloud surrounding a comet nucleus
Dutch:
coma
— Cloud surrounding a comet nucleus
Finnish:
huntu
— Cloud surrounding a comet nucleus
Finnish:
koma
— Cloud surrounding a comet nucleus
French:
chevelure
— Cloud surrounding a comet nucleus
French:
coma
— Cloud surrounding a comet nucleus
Galician:
coma
— Cloud surrounding a comet nucleus
German:
Koma
— Cloud surrounding a comet nucleus
Greek:
ουρά
(ourá)
— Cloud surrounding a comet nucleus
Greek:
κόμη
(kómi)
— Cloud surrounding a comet nucleus
Greek:
χαίτη
(chaíti)
— Cloud surrounding a comet nucleus
Japanese:
コマ
(koma)
— Cloud surrounding a comet nucleus
Polish:
koma
— Cloud surrounding a comet nucleus
Russian:
ко́ма
(kóma)
— Cloud surrounding a comet nucleus
Chinese Mandarin:
彗差
(huìchā)
— Defect characterized by diffuse, pear-shaped images
Czech:
koma
— Defect characterized by diffuse, pear-shaped images