| 释义 |
detergent
de·ter·gent D0170100 (dĭ-tûr′jənt)n. A cleansing substance that acts similarly to soap but is made from chemical compounds rather than fats and lye.adj. Having cleansing power.detergent (dɪˈtɜːdʒənt) n (Chemistry) a cleansing agent, esp a surface-active chemical such as an alkyl sulphonate, widely used in industry, laundering, shampoos, etcadjhaving cleansing power[C17: from Latin dētergēns wiping off; see deterge]de•ter•gent (dɪˈtɜr dʒənt)
n. 1. any synthetic organic cleaning agent that is liquid or water-soluble and has wetting-agent and emulsifying properties. 2. a similar substance that is oil-soluble, used in lubricating oils, dry-cleaning preparations, etc. 3. any cleansing agent, including soap. adj. 4. cleansing; purging. [1610–20; (< French) < Latin dētergent-, s. of dētergēns, present participle of dētergēre. See deterge, -ent] de·ter·gent (dĭ-tûr′jənt) A cleaning agent that increases the ability of water to penetrate fabric and break down greases and dirt. Detergents act like soap but are made of chemicals obtained from petroleum products. Their molecules surround particles of grease and dirt, allowing them to be carried away. Compare soap.Thesaurus| Noun | 1. |  detergent - a surface-active chemical widely used in industry and launderinganionic, anionic detergent, non-ionic detergent - a class of synthetic detergents in which the molecules do not ionize in aqueous solutionscationic detergent, invert soap - a class of synthetic detergents in which the surface-active part of the molecule is the cationSLS, sodium lauryl sulfate, sodium lauryl sulphate - a caustic detergent useful for removing grease; although commonly included in personal care items (shampoos and toothpastes etc.) it can irritate skin and should not be swallowedsurface-active agent, surfactant, wetter, wetting agent - a chemical agent capable of reducing the surface tension of a liquid in which it is dissolved | | 2. | detergent - a cleansing agent that differs from soap but can also emulsify oils and hold dirt in suspensioncleaner, cleanser, cleansing agent - a preparation used in cleaning somethingdishwasher detergent, dishwashing detergent, dishwashing liquid - a low-sudsing detergent designed for use in dishwasherslaundry detergent - any of various detergents designed for use in a washing machine for clothingliquid detergent - a detergent in liquid form | | Adj. | 1. | detergent - having cleansing powerdetersivepurifying - freeing from noxious matter; "filtration is a purifying agent" |
detergentnoun1. cleaner, cleanser, washing-up liquid, soap powder, soap flakes He squeezed some detergent over the dishes.adjective1. cleansing, cleaning, purifying, abstergent, detersive low-lather detergent powdersTranslationsdetergent (diˈtəːdʒənt) noun a (soapless) substance used for cleaning. She poured detergent into the washing-machine. 清潔劑，洗滌劑 清洁剂，洗涤剂 - Do you have laundry detergent? (US)
Do you have washing powder? (UK) → 有洗衣粉吗？
detergent
detergent (dētûr`jənt, dĭ–), substance that aids in the removal of dirt. Detergents act mainly on the oily films that trap dirt particles. The detergent molecules have a hydrocarbon portion, soluble in oil, and an ionic portion, soluble in water. The detergent acts as an emulsifier, i.e., by bridging the water and oil phases, it breaks the oil into tiny droplets suspended in water. The disruption of the oil film allows the dirt particles to become solubilized. Soap, the sodium salt of long-chain fatty acids, is a good detergent although it has some disadvantages, e.g., it forms insoluble compounds with certain salts found in hard water thus diminishing its effectiveness, and in acid solutions, frequently used in industry, it is decomposed (thus precipitating the free fatty acid of the soap). Synthetic detergents were produced experimentally in France before the middle of the 19th cent. and were further developed in Germany during World War I. However, not until the 1930s were chemical processes developed that made production in quantity feasible in any country. Synthetic detergents were first developed for commercial use in the 1950s. Detergents are classified as anionic, or negatively charged, e.g., soaps; cationic, or positively charged, e.g., tetraalkyl ammonium chloride, used as fabric softeners; nonionic, e.g., certain esters made from oil, used as degreasing agents in industry; and zwitterionic, containing both positive and negative ions on the same molecule. Detergents are incorporated in such products as dry-cleaning solutions, toothpastes, antiseptics, and solutions for removing poison sprays from vegetables and fruit. Laundry detergent preparations may contain substances called builders, which enhance cleansing; however, phosphate-containing builders have been found to contribute to eutrophicationeutrophication
, aging of a lake by biological enrichment of its water. In a young lake the water is cold and clear, supporting little life. With time, streams draining into the lake introduce nutrients such as nitrogen and phosphorus, which encourage the growth of aquatic
..... Click the link for more information. of waterways and their use has been banned in many areas. Detergents that can be decomposed by microorganisms are termed biodegradable. Detergents are important chemicals used for enhanced petroleum recovery.detergent[di′tər·jənt] (materials) A synthetic cleansing agent resembling soap in the ability to emulsify oil and hold dirt, and containing surfactants which do not precipitate in hard water; may also contain protease enzymes and whitening agents. detergent a cleansing agent, esp a surface-active chemical such as an alkyl sulphonate, widely used in industry, laundering, shampoos, etc. detergent
detergent [de-ter´jent] 1. purifying or cleansing.2. an agent that purifies or cleanses.3. in biochemistry, any of a class of agents structurally consisting of a nonpolar hydrocarbon chain and a hydrophilic polar head group, which reduce the surface tension of water, emulsify, and aid in solubilization of soil.de·ter·gent (dē-tĕr'jent), 1. Cleansing. 2. A cleansing or purging agent, usually salts of long-chain aliphatic bases or acids (for example, quaternary ammonium or sulfonic acid compounds) that, through a surface action that depends on their possessing both hydrophilic and hydrophobic properties, exert cleansing (oil-dissolving) and antibacterial effects; acridine derivatives (for example, acriflavine, proflavine) as well as other dyes (for example, brilliant green, crystal violet) have detergent properties for the same reasons. Synonym(s): detersive [L. de-tergeo, pp. -tersus, to wipe off] de·ter·gent (dĕ-tĕr'jĕnt) A cleansing or purging agent, usually salts of long-chain aliphatic bases or acids that, through a surface action that depends on their possessing both hydrophilic and hydrophobic properties, exert cleansing (i.e., oil-dissolving) and antibacterial effects. [L. de-tergeo, pp. -tersus, to wipe off]detergent a substance that when dissolved in water acts as a cleansing agent for the removal of grease by altering the interfacial tension of water with other liquids or solids. Powerful detergents are used to break up oil spillages at sea.de·ter·gent (dĕ-tĕr'jĕnt) A cleansing or purging agent that provides cleansing (i.e., oil-dissolving) and antibacterial effects. [L. de-tergeo, pp. -tersus, to wipe off]detergent
Related to detergent: Detergent powderSynonyms for detergentnoun cleanerSynonyms- cleaner
- cleanser
- washing-up liquid
- soap powder
- soap flakes
adj cleansingSynonyms- cleansing
- cleaning
- purifying
- abstergent
- detersive
Synonyms for detergentnoun a surface-active chemical widely used in industry and launderingRelated Words- anionic
- anionic detergent
- non-ionic detergent
- cationic detergent
- invert soap
- SLS
- sodium lauryl sulfate
- sodium lauryl sulphate
- surface-active agent
- surfactant
- wetter
- wetting agent
noun a cleansing agent that differs from soap but can also emulsify oils and hold dirt in suspensionRelated Words- cleaner
- cleanser
- cleansing agent
- dishwasher detergent
- dishwashing detergent
- dishwashing liquid
- laundry detergent
- liquid detergent
adj having cleansing powerSynonymsRelated Words |