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- Dictionarydigestion/dʌɪˈdʒɛstʃ(ə)n/
noun
- 1. the process of digesting food.
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noun
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Digestion is the breakdown of large insoluble food compounds into small water-soluble components so that they can be absorbed into the blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream. Digestion is a form of catabolism that is often divided into two processes based on how food is broken down: mechanical and chemical digesti... Wikipedia