digestion
/dɪˈdʒestʃən/noun
mass noun
1- the process of breaking down food by mechanical and enzymatic action in the stomach and intestines into substances that can be used by the body（食物的）消化。
1.1
- count noun a person's capacity to break down food in such a way消化能力：
he suffered with his digestion.
他因消化不好而难受。
1.2
- Chemistry the process of treating a substance by means of heat, enzymes, or a solvent to promote decomposition or extract essential components【化】蒸煮, （使用酶或溶剂的）分解, 提炼。
词源
late Middle English: via Old French from Latin digestio（n-）, from the verb digerere （see DIGEST）.