单词	respiratory quotient
释义	respiratory quotient noun : a ratio indicating the relation of the volume of carbon dioxide given off in respiration to that of the oxygen consumed Word History First Known Use 1879, in the meaning defined above Medical Definition respiratory quotient noun : the ratio of the volume of carbon dioxide given off in respiration to that of the oxygen consumed that has a value near 1 when the organism is burning chiefly carbohydrates, near 0.7 when chiefly fats, and near 0.8 when chiefly proteins but sometimes exceeding 1 when carbohydrates are being changed to fats for storage —abbreviation RQ
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