| 释义 |
decomposition
de·com·po·si·tion D0078500 (dē-kŏm′pə-zĭsh′ən)n.1. The act or result of decomposing; disintegration.2. a. Chemistry Separation into constituents by chemical reaction.b. Biology Breakdown or decay of organic materials.
de·com′po·si′tion·al adj.de·com·po·si·tion (dē-kŏm′pə-zĭsh′ən)1. The separation of a substance into simpler substances or basic elements.2. The process of decaying or rotting. Decomposition of dead organic matter is brought about by the activity of certain bacteria and fungi feeding on it.decompositionThe process of breakdown of a chemical compound into less complex substances.Thesaurus| Noun | 1. | decomposition - the analysis of a vector fieldvector decompositionvector algebra - the part of algebra that deals with the theory of vectors and vector spaces | | 2. | decomposition - in a decomposed statedisintegrationfragmentation - the disintegration of social norms governing behavior and thought and social relationshipsdecay - an inferior state resulting from the process of decaying; "the corpse was in an advanced state of decay"; "the house had fallen into a serious state of decay and disrepair" | | 3. | decomposition - (chemistry) separation of a substance into two or more substances that may differ from each other and from the original substancechemical decomposition reaction, decomposition reactionchemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactionschemical reaction, reaction - (chemistry) a process in which one or more substances are changed into others; "there was a chemical reaction of the lime with the ground water"electrolysis - (chemistry) a chemical decomposition reaction produced by passing an electric current through a solution containing ions | | 4. |  decomposition - (biology) the process of decay caused by bacterial or fungal actionrotting, putrefaction, rotbiological science, biology - the science that studies living organismsdecay - the process of gradually becoming inferior | | 5. | decomposition - the organic phenomenon of rottingdecayorganic phenomenon - (biology) a natural phenomenon involving living plants and animals |
decompositionnoun (Formal)1. rot, corruption, decay, rotting, perishing, mortification, putrefaction, putrescence, putridity The bodies were in an advanced state of decomposition.2. breakdown, disintegration, dissolution, atomization a nuclear reactor which gives complete decomposition and no unwanted byproductsdecompositionnounThe condition of being decayed:breakdown, decay, deterioration, disintegration, putrefaction, putrescence, putridness, rot, rottenness, spoilage.Translationsdecompose (diːkəmˈpouz) verb (of vegetable or animal matter) to (cause to) decay or rot. Corpses decompose quickly in heat. 腐爛 腐烂decomposition (diːkompəˈziʃən) noun 腐爛，分解 腐烂，分解 ˌdecomˈposer noun something that causes a substance to rot or break up into simpler parts. 分解物 分解体（分解已败死的原生质之有机体） decomposition
decomposition[dē‚käm·pə′zish·ən] (chemistry) The more or less permanent structural breakdown of a molecule into simpler molecules or atoms. (geochemistry) chemical weathering (mathematics) The expression of a fraction as a sum of partial fractions. The representation of a set as the union of pairwise disjoint subsets. decomposition
decomposition [de-kom″po-zish´un] 1. the separation of compound bodies into their constituent principles.2. deterioration or decay of a substance.pu·tre·fac·tion (pyū'trĕ-fak'shŭn), Decomposition or rotting, the breakdown of organic matter usually by bacterial action, resulting in the formation of other substances of less complex constitution with the evolution of ammonia or its derivatives and hydrogen sulfide; characterized usually by the presence of toxic or malodorous products. Synonym(s): decay (2) , decomposition [L. putre-facio, pp. -factus, to make rotten] decomposition (dē-kŏm′pə-zĭsh′ən)n.1. The act or result of decomposing; disintegration.2. a. Chemistry Separation into constituents by chemical reaction.b. Biology Breakdown or decay of organic materials.
de·com′po·si′tion·al adj.decomposition The physical putrefaction and decay of a body, which is slowed by immersion in water (especially cold water) or burial (especially in drier soils).
General sequence of external decomposition
• Discolouration of lower abdominal wall, starting in right iliac fossa.
• Distension of abdomen by gas (spread of bowel organisms).
• Discolouration of dependent areas (generalised spread of bacteria to moistest tissues).
• Face and neck turn red and swell.
• “Marbling” branching pattern on skin due to bacterial colonisation of vessels and staining of vessel walls by haemolysis—occurring at ± 1 week of corpse in ambient temperature of 18–20°C.
• Skin blistering and slippage.
• Gross distension of the abdomen, face (protrusion of tongue and eyes) and scrotum.
• Bloody fluid leaks from orifices (2–3 weeks).
• Skin discolouration deepens to dark green or black.
• Maggot infestation with increased tissue destruction.
• Skin slippage from fingers and toes (hinders identification).
Internal decomposition
Proceeds more slowly, and differs by organ:
• Intestine, adrenals and pancreas autolyse within hours.
• Brain liquefies within a month (meningeal haemorrhage/haematoma usually persist).
• Body fat liquefies to yellow fluid filling body cavities.
• Softer tissues and viscera disintegrate over several months.
• Uterus, heart and prostate persist for the longest.
• Skeletalisation with tendons—12–18 months in temperate climate.
• “Bare-bone” skeletalisation—3 years in temperate climate.pu·tre·fac·tion (pyū'trĕ-fak'shŭn) Decomposition or rotting, the breakdown of organic matter, usually by bacterial action, resulting in the formation of other substances of less complex constitution with the evolution of ammonia or its derivatives and hydrogen sulfide; characterized usually by the presence of toxic or malodorous products.
Synonym(s): decay (2) , decomposition. [L. putre-facio, pp. -factus, to make rotten]decomposition Separation into chemical constituents or simpler compounds often as a result of bacterial enzymatic action.decomposition - the break-up of a chemical substance into two or more simpler substances.
- the breakdown of organic material by microorganisms.
decomposition
Synonyms for decompositionnoun rotSynonyms- rot
- corruption
- decay
- rotting
- perishing
- mortification
- putrefaction
- putrescence
- putridity
noun breakdownSynonyms- breakdown
- disintegration
- dissolution
- atomization
Synonyms for decompositionnoun the condition of being decayedSynonyms- breakdown
- decay
- deterioration
- disintegration
- putrefaction
- putrescence
- putridness
- rot
- rottenness
- spoilage
Synonyms for decompositionnoun the analysis of a vector fieldSynonymsRelated Wordsnoun in a decomposed stateSynonymsRelated Wordsnoun (chemistry) separation of a substance into two or more substances that may differ from each other and from the original substanceSynonyms- chemical decomposition reaction
- decomposition reaction
Related Words- chemical science
- chemistry
- chemical reaction
- reaction
- electrolysis
noun (biology) the process of decay caused by bacterial or fungal actionSynonymsRelated Words- biological science
- biology
- decay
noun the organic phenomenon of rottingSynonymsRelated Words |