| 单词 | ketone body | 
| 释义 | Word Frequency ketone bodynoun  biochemistry any of three compounds (acetoacetic acid, 3-hydroxybutanoic acid, and acetone) produced when fatty acids are broken down in the liver to provide a source of energy. Excess ketone bodies are present in the blood and urine of people unable to use glucose as an energy source, as in diabetes and starvation Also called: acetone body | 
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