| 单词 | digestion |
| 释义 | digestion[ dih-jes-chuhn, dahy- ] / dɪˈdʒɛs tʃən, daɪ- / SEE SYNONYMS FOR digestion ON THESAURUS.COM nounthe process in the alimentary canal by which food is broken up physically, as by the action of the teeth, and chemically, as by the action of enzymes, and converted into a substance suitable for absorption and assimilation into the body. the function or power of digesting food: My digestion is bad. the act of digesting or the state of being digested. Origin of digestion1350–1400; Middle English digestioun<Anglo-French, Middle French <Latin dīgestiōn- (stem of dīgestiō), equivalent to dīgest(us) (see digest) + -iōn--ion OTHER WORDS FROM digestiondi·ges·tion·al, adjectivenon·di·ges·tion, nounre·di·ges·tion, nounself-di·ges·tion, nounWords nearby digestiondigest, digestant, digester, digestible, digestif, digestion, digestive, digestive biscuit, digestive gland, digestive system, digestive tract Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for digestionBritish Dictionary definitions for digestiondigestion / (dɪˈdʒɛstʃən, daɪ-) / nounthe act or process in living organisms of breaking down ingested food material into easily absorbed and assimilated substances by the action of enzymes and other agentsRelated adjective: peptic mental assimilation, esp of ideas bacteriol the decomposition of sewage by the action of bacteria chem the treatment of material with heat, solvents, chemicals, etc, to cause softening or decomposition Derived forms of digestiondigestional, adjectiveWord Origin for digestionC14: from Old French, from Latin digestiō a dissolving, digestion Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Cultural definitions for digestiondigestion The breaking down of food, which is made up of complex organic molecules (see also organic molecule), into smaller molecules that the body can absorb and use for maintenance and growth. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Medical definitions for digestiondigestion [ dī-jĕs′chən, dĭ- ] n.The process by which food is converted into substances that can be absorbed and assimilated by the body, especially that accomplished in the alimentary canal by the mechanical and enzymatic breakdown of foods into simpler chemical compounds. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for digestiondigestion [ dī-jĕs′chən ] The process by which food is broken down into simple chemical compounds that can be absorbed and used as nutrients or eliminated by the body. In most animals, nutrients are obtained from food by the action of digestive enzymes. In humans and other higher vertebrates, digestion takes place mainly in the small intestine. In protists and some invertebrates, digestion occurs by phagocytosis. The decomposition of organic material, such as sewage, by bacteria. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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