Definitions for Coma
ˈkoʊ məco·ma

Princeton's WordNetRate this definition:5.0 / 1 vote

1. coma, comatosenessnoun

   a state of deep and often prolonged unconsciousness; usually the result of disease or injury

2. comanoun

   (botany) a usually terminal tuft of bracts (as in the pineapple) or tuft of hairs (especially on certain seeds)

3. comanoun

   (astronomy) the luminous cloud of particles surrounding the frozen nucleus of a comet; forms as the comet approaches the sun and is warmed

Samuel Johnson's DictionaryRate this definition:0.0 / 0 votes

1. COMAnoun

   A morbid disposition to sleep; a lethargy.

   Etymology: ϰῶμα.

WikipediaRate this definition:0.0 / 0 votes

1. Coma

   A coma is a deep state of prolonged unconsciousness in which a person cannot be awakened, fails to respond normally to painful stimuli, light, or sound, lacks a normal wake-sleep cycle and does not initiate voluntary actions. Coma patients exhibit a complete absence of wakefulness and are unable to consciously feel, speak or move. Comas can be derived by natural causes, or can be medically induced.Clinically, a coma can be defined as the inability consistently to follow a one-step command. It can also be defined as a score of ≤ 8 on the Glasgow Coma Scale (GCS) lasting ≥ 6 hours. For a patient to maintain consciousness, the components of wakefulness and awareness must be maintained. Wakefulness describes the quantitative degree of consciousness, whereas awareness relates to the qualitative aspects of the functions mediated by the cortex, including cognitive abilities such as attention, sensory perception, explicit memory, language, the execution of tasks, temporal and spatial orientation and reality judgment. From a neurological perspective, consciousness is maintained by the activation of the cerebral cortex—the gray matter that forms the outer layer of the brain—and by the reticular activating system (RAS), a structure located within the brainstem.

ChatGPTRate this definition:0.0 / 0 votes

1. coma

   A coma is a prolonged state of unconsciousness, during which a person is unresponsive to their environment and cannot be awakened. This medical condition can occur as a result of various factors such as traumatic brain injury, stroke, brain tumor, drug poisoning, or severe illness. Patients in a coma do not exhibit normal sleep-wake cycles and do not initiate voluntary actions.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Comanoun

   a state of profound insensibility from which it is difficult or impossible to rouse a person. See Carus

2. Comanoun

   the envelope of a comet; a nebulous covering, which surrounds the nucleus or body of a comet

3. Comanoun

   a tuft or bunch, -- as the assemblage of branches forming the head of a tree; or a cluster of bracts when empty and terminating the inflorescence of a plant; or a tuft of long hairs on certain seeds

4. Etymology: [NL., fr. Gr. kw^ma lethargy, fr. koima^n to put to sleep. See Cemetery.]

WikidataRate this definition:0.0 / 0 votes

1. Coma

   In medicine, a coma is a state of unconsciousness lasting more than six hours, in which a person: cannot be awakened; fails to respond normally to painful stimuli, light, or sound; lacks a normal sleep-wake cycle; and, does not initiate voluntary actions. A person in a state of coma is described as being comatose. Although a coma patient may appear to be awake, they are unable to consciously feel, speak, hear, or move. For a patient to maintain consciousness, two important neurological components must function impeccably. The first is the cerebral cortex which is the gray matter covering the outer layer of the brain. The other is a structure located in the brainstem, called reticular activating system. Injury to either or both of these components is sufficient to cause a patient to experience a coma. The cerebral cortex is a group of tight, dense, "gray matter" composed of the nucleus of the neurons whose axons then form the "white matter", and is responsible for perception, relay of the sensory input via the thalamic pathway, and most importantly directly or indirectly in charge of all the neurological functions, from simple reflexes to complex thinking.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Coma

   kō′ma, n. deep sleep: stupor.—adj. Com′atose, affected with coma: drowsy. [Gr. kōma.]

2. Coma

   kō′ma, n. (bot.) a tuft or bunch of hairy-like appendages as on some seeds: the leafy branches forming the head of a tree: (astron.) the nebulous envelope surrounding the nucleus of a comet. [L.—Gr. komē, hair of the head.]

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Coma

   A profound state of unconsciousness associated with depressed cerebral activity from which the individual cannot be aroused. Coma generally occurs when there is dysfunction or injury involving both cerebral hemispheres or the brain stem RETICULAR FORMATION.

Suggested ResourcesRate this definition:0.0 / 0 votes

1. coma

   Song lyrics by coma -- Explore a large variety of song lyrics performed by coma on the Lyrics.com website.

2. COMA

   What does COMA stand for? -- Explore the various meanings for the COMA acronym on the Abbreviations.com website.

3. Coma

   Coma vs. Comma -- In this Grammar.com article you will learn the differences between the words Coma and Comma.

Surnames Frequency by Census RecordsRate this definition:0.0 / 0 votes

1. COMA

   According to the U.S. Census Bureau, Coma is ranked #86005 in terms of the most common surnames in America.
   
   The Coma surname appeared 217 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 0 would have the surname Coma.
   
   68.2% or 148 total occurrences were White.
   13.3% or 29 total occurrences were Asian.
   11.9% or 26 total occurrences were of Hispanic origin.
   4.6% or 10 total occurrences were Black.

Matched Categories

1. • Botany
   • Cloud
   • Comet
   • Tuft
   • Unconsciousness

Anagrams for Coma »

1. maco

How to pronounce Coma?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say Coma in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of Coma in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of Coma in Pythagorean Numerology is: 5

Examples of Coma in a Sentence

1. Jaqueline Poitras:

   If you open the pamphlets in some of these boxes, some of the side effects are things like coma, death, this should have been the first drug of choice and not the last drug of choice.

2. Erica Groshen:

   Our economy is on life support now, we will be testing the waters in the next few months to see if it can emerge safely from our policy-induced coma.

3. Bonnie Dumanis:

   It was a melee basically, where two of the boys were stabbed. One went into an induced coma, luis was stabbed, and one got smashed in the eye.

4. Andrew Lerman:

   She knows where she is, who she is -- she's as sharp as a tack, usually, when somebody comes out of a coma like that, they say that the patients have delirium where they're very confused. From day one, she hasn't experienced any of that.

5. Lamar Odom:

   I was fortunate to be part of their family. I still consider Lamar Odom a part of their family, it just goes to show you their strength and endurance as a family that they can do anything. With their love and the love of my family, I think that's what woke me up [ out of a coma ].

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=Coma
2. ^ Samuel Johnson's Dictionary
   https://johnsonsdictionaryonline.com/views/search.php?term=Coma
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Coma
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/Coma
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=Coma
7. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=Coma
8. ^ Surnames Frequency by Census Records
   https://www.census.gov/topics/population/genealogy/data/2010_surnames.html