| 释义 |
fractionation
frac·tion·ate F0290700 (frăk′shə-nāt′)v. frac·tion·at·ed, frac·tion·at·ing, frac·tion·ates v.tr.1. To divide or separate into parts; break up: "In the post-Watergate era, power has been fractionated on Capitol Hill" (Evan Thomas).2. To separate (a chemical mixture) into components, as by distillation or crystallization.v.intr.1. To divide or separate into parts: "Languages have an extraordinary capacity to fractionate into mutually unintelligible dialects" (Robin Dunbar).2. To undergo chemical separation, as by distillation or crystallization.
frac′tion·a′tion n.frac′tion·a′tor n.frac·tion·a·tion (frăk′shə-nā′shən) The separation of a chemical compound into components, as by distillation or crystallization.Thesaurus| Noun | 1. | fractionation - a process that uses heat to separate a substance into its componentsfractional processdestructive distillation - heating a solid substance in a closed container and collecting the volatile productsfractional distillation - fractionation of a liquid by distillationindustrial process - a systematic series of mechanical or chemical operations that produce or manufacture something | | 2. | fractionation - separation into portionsdivision - the act or process of dividing |
Translationsfractionation
fractionation[‚frak·shə′nā·shən] (chemistry) Separation of a mixture in successive stages, each stage removing from the mixture some proportion of one of the substances, as by differential solubility in water-solvent mixtures. (nucleonics) Alterations in the isotopic composition of substances found in nature or in radioactive weapon debris, which result from small differences in the physical and chemical properties of isotopes of an element. (petrology) fractional crystallization fractionation
fractionation [frak″shun-a´shun] 1. in radiology, division of the total dose of radiation into small doses given at intervals.2. in chemistry, separation of a substance into components, as by distillation or crystallization.3. in histology, isolation of components of living cells by differential centrifugation.frac·tion·a·tion (frak'shŭn-ā'shŭn), 1. To separate components of a mixture. 2. The administration of a course of therapeutic radiation of a neoplasm in a planned series of fractions of the total dose, most often once a day for several weeks, in order to minimize radiation damage of contiguous normal tissues. fractionation (frăk′shə-nā′shən)n.1. The process of dividing or separating into parts; breaking up.2. The division of a total therapeutic dose of radiation into small doses to be administered over a period of days or weeks.3. The separation of a chemical compound into components, as by distillation.fractionation Radiation oncology The parceling of a dose of radiation over time. See Accelerated fractionation, Hyperfractionation, Radiation therpy. frac·tion·a·tion (frakshŭn-āshŭn) 1. Separation of the components of a mixture into its basic constituents. 2. The administration of a course of therapeutic radiation in a planned series of fractions of the total dose, most often once a day for several weeks, to minimize radiation damage of contiguous normal tissues. FractionationA laboratory test or process in which blood or another fluid is broken down into its components. Fractionation can be used to assess the proportions of the different types of cholesterol in a blood sample.Mentioned in: Cholesterol Test, Radiation Therapyfrac·tion·a·tion (frakshŭn-āshŭn) 1. Separation of the components of a mixture into its basic constituents. 2. The administration of a course of therapeutic radiation of a neoplasm in a planned series of fractions of the total dose, most often once a day for several weeks, to minimize radiation damage. fractionation
Synonyms for fractionationnoun a process that uses heat to separate a substance into its componentsSynonymsRelated Words- destructive distillation
- fractional distillation
- industrial process
noun separation into portionsRelated Words |