Ketone Meaning
/ˈkiːtəʊn/Definition, CEFR level B2, pronunciation, examples, and quiz.
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Definition
nounA homologous series of organic molecules whose functional group is an oxygen atom joined to a carbon atom—by a double bond—in a carbon-hydrogen based molecule.
Sentence Examples
The doctor checked her ketone levels.
Ketone bodies are produced by the liver.
The chemist analyzed the ketone levels in the solution.
CEFR Practice Quiz
During fasting, the liver converts fatty acids into ____ for the brain to use as fuel.
CEFR Practice Quiz (Alternate)
The presence of a ____ in the urine can be a sign that the body is burning fat for its energy instead.
Word Origin & History
Etymology tree German Ketonbor. English ketone From German Keton, from Aketon (“acetone”), from French acétone (“acetone”). See acetone.
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CEFR Practice Quiz
During fasting, the liver converts fatty acids into ____ for the brain to use as fuel.
CEFR Practice Quiz (Alternate)
The presence of a ____ in the urine can be a sign that the body is burning fat for its energy instead.