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ketone 音标拼音: [k'iton]

n. 酮类

酮类

WordNet (r) 3.0 (2006) (WordNet)

ketone
n 1: any of a class of organic compounds having a carbonyl group
linked to a carbon atom in each of two hydrocarbon radicals

The Collaborative International Dictionary of English v.0.48 (gcide)

Ketone \Ke"tone\ (k[=e]"t[=o]n), n. [Cf. {Acetone}.] (Chem.)
One of a large class of organic substances resembling the
aldehydes, obtained by the distillation of certain salts of
organic acids and consisting of carbonyl ({CO}) united with
two hydrocarbon radicals. In general the ketones are
colorless volatile liquids having a pungent ethereal odor.
[1913 Webster]

Note: The ketones are named by adding the suffix-one to the
stems of the organic acids from which they are
respectively derived; thus, acetic acid gives acetone;
butyric acid, butyrone, etc.
[1913 Webster]

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英文字典中文字典相关资料:

Ketones: What They Are, Function, Tests Normal Levels
Ketones, or ketone bodies, are acids your body makes when it’s using fat instead of glucose for energy Your body gets most of its energy from glucose, a sugar that mainly comes from carbohydrates in your diet
Ketone - Wikipedia
An aldehyde differs from a ketone in that it has a hydrogen atom attached to its carbonyl group, making aldehydes easier to oxidize Ketones do not have a hydrogen atom bonded to the carbonyl group, and are therefore more resistant to oxidation
What Is a Dangerous Level of Ketones in Urine? - Verywell Health
High levels of ketones in urine can become life-threatening without treatment Learn more about symptoms that occur with or without underlying diabetes
Ketone | Definition, Properties, Facts | Britannica
Ketone, any of a class of organic compounds characterized by the presence of a carbonyl group in which the carbon atom is covalently bonded to an oxygen atom The remaining two bonds are to other carbon atoms or hydrocarbon radicals
What are Ketones? Types, Benefits, and How to Test
What Are Ketones? Ketones, also known as “ketone bodies,” are energy molecules created by the liver from the breakdown of fats Your body makes ketones when you don’t have access to carbs or enough glucose stores (glycogen), such as when on a ketogenic diet
Ketones: Blood or Urine Tests and Treatments - Healthline
In a person without diabetes, insulin, glucagon, and other hormones prevent ketone levels in the blood from getting too high by collecting a steady and stable stream of useable glucose
Ketone Functional Group: Definition, Structure, and Examples
When the carbonyl group is attached to an aromatic ring, the compound is referred to as an aromatic ketone If the carbonyl carbon is directly bonded to a benzene ring, it is called an aryl ketone

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