1. Introduction of food and drink into the stomach. 2. Incorporation of particles into the cytoplasm of a phagocytic cell by invagination of a portion of the cell membrane as a vacuole. [L. in-gero, to carry in]
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n.
1. the process by which food is taken into the alimentary canal. It involves chewing and swallowing.
2. the process by which a phagocytic cell takes in solid material, such as bacteria.
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in·ges·tion (in-jesґchən) the act of taking food, medicines, etc., into the body, by mouth. ingestive adjMedical dictionary. 2011.