| 释义 |
attenuate
at·ten·u·ate A0509700 (ə-tĕn′yo͞o-āt′)v. at·ten·u·at·ed, at·ten·u·at·ing, at·ten·u·ates v.tr.1. To make slender, fine, or small: The drought attenuated the river to a narrow channel.2. To reduce in force, value, amount, or degree; weaken: Medicine attenuated the fever's effect.3. To lessen the density of; rarefy.4. Biology To make (bacteria or viruses) less virulent.5. Electronics To reduce (the amplitude of an electrical signal) with little or no distortion.v.intr. To become thin, weak, or fine.adj. (-yo͞o-ĭt)1. Reduced or weakened, as in strength, value, or virulence.2. Botany Gradually tapering to a slender point.
[Latin attenuāre, attenuāt- : ad-, ad- + tenuāre, to make thin (from tenuis, thin; see ten- in Indo-European roots).]
at·ten′u·a′tion n.attenuate vb 1. to weaken or become weak; reduce in size, strength, density, or value 2. to make or become thin or fine; extend 3. (Microbiology) (tr) to make (a pathogenic bacterium, virus, etc) less virulent, as by culture in special media or exposure to heat adj 4. diluted, weakened, slender, or reduced 5. (Botany) botany tapering gradually to a point [C16: from Latin attenuāre to weaken, from tenuis thin]at•ten•u•ate (v. əˈtɛn yuˌeɪt; adj. -ɪt, -ˌeɪt)
v. -at•ed, -at•ing,
adj. v.t. 1. to weaken or reduce in force, intensity, effect, quantity, or value: to attenuate desire. 2. to make thin; make slender or fine. 3. to render less virulent, as a strain of pathogenic virus or bacterium. 4. to reduce the amplitude of (an electronic signal) without distortion. v.i. 5. to become thin or fine; lessen. adj. 6. weakened; diminishing. 7. Bot. tapering gradually to a narrow extremity. [1520–30; < Latin attenuātus, past participle of attenuāre to thin, reduce. See at-, tenuis, -ate1] attenuate
Past participle: attenuated
Gerund: attenuating
| Imperative |
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| attenuate | | attenuate |
| Present |
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| I attenuate | | you attenuate | | he/she/it attenuates | | we attenuate | | you attenuate | | they attenuate |
| Preterite |
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| I attenuated | | you attenuated | | he/she/it attenuated | | we attenuated | | you attenuated | | they attenuated |
| Present Continuous |
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| I am attenuating | | you are attenuating | | he/she/it is attenuating | | we are attenuating | | you are attenuating | | they are attenuating |
| Present Perfect |
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| I have attenuated | | you have attenuated | | he/she/it has attenuated | | we have attenuated | | you have attenuated | | they have attenuated |
| Past Continuous |
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| I was attenuating | | you were attenuating | | he/she/it was attenuating | | we were attenuating | | you were attenuating | | they were attenuating |
| Past Perfect |
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| I had attenuated | | you had attenuated | | he/she/it had attenuated | | we had attenuated | | you had attenuated | | they had attenuated |
| Future |
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| I will attenuate | | you will attenuate | | he/she/it will attenuate | | we will attenuate | | you will attenuate | | they will attenuate |
| Future Perfect |
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| I will have attenuated | | you will have attenuated | | he/she/it will have attenuated | | we will have attenuated | | you will have attenuated | | they will have attenuated |
| Future Continuous |
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| I will be attenuating | | you will be attenuating | | he/she/it will be attenuating | | we will be attenuating | | you will be attenuating | | they will be attenuating |
| Present Perfect Continuous |
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| I have been attenuating | | you have been attenuating | | he/she/it has been attenuating | | we have been attenuating | | you have been attenuating | | they have been attenuating |
| Future Perfect Continuous |
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| I will have been attenuating | | you will have been attenuating | | he/she/it will have been attenuating | | we will have been attenuating | | you will have been attenuating | | they will have been attenuating |
| Past Perfect Continuous |
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| I had been attenuating | | you had been attenuating | | he/she/it had been attenuating | | we had been attenuating | | you had been attenuating | | they had been attenuating |
| Conditional |
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| I would attenuate | | you would attenuate | | he/she/it would attenuate | | we would attenuate | | you would attenuate | | they would attenuate |
| Past Conditional |
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| I would have attenuated | | you would have attenuated | | he/she/it would have attenuated | | we would have attenuated | | you would have attenuated | | they would have attenuated |
Thesaurus| Verb | 1. | attenuate - weaken the consistency of (a chemical substance)rarefychemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactionsweaken - lessen the strength of; "The fever weakened his body" | | 2. | attenuate - become weaker, in strength, value, or magnitudeweaken - become weaker; "The prisoner's resistance weakened after seven days"refine - attenuate or reduce in vigor, strength, or validity by polishing or purifying; "many valuable nutrients are refined out of the foods in our modern diet" | | Adj. | 1. | attenuate - reduced in strength; "the faded tones of an old recording"attenuated, faded, weakeneddecreased, reduced - made less in size or amount or degree |
attenuateverb weaken, reduce, contract, lower, diminish, decrease, dilute, lessen, sap, water down, adulterate, enfeeble, enervate, devaluate Preparation and training can attenuate risk.attenuateverb1. To lessen or deplete the nerve, energy, or strength of:debilitate, devitalize, enervate, enfeeble, sap, undermine, undo, unnerve, weaken.2. To lessen the strength of by or as if by admixture:cut, dilute, thin, water (down), weaken.3. To become diffuse:rarefy, thin.Translationsatenuaratténuerattenuareannacquareattenuantiattenuate
attenuate[ə′ten·yə‚wāt] (engineering acoustics) To weaken a signal by reducing its level. attenuateTo reduce, lower, lessen. The term is commonly used with regard to signals in electronic circuitry and communications.attenuate
at·ten·u·ate (ă-ten'yū-āt), To dilute, thin, reduce, weaken, diminish. [L. at-tenuo, pp. -tenuatus, to make thin or weak, fr. tenuis, thin] attenuate (ə-tĕn′yo͞o-āt′)v. attenu·ated, attenu·ating, attenu·ates v.tr.1. To reduce in force, value, amount, or degree; weaken: Medicine attenuated the fever's effect.2. To lessen the density of; rarefy.3. Biology To make (bacteria or viruses) less virulent.4. Electronics To reduce (the amplitude of an electrical signal) with little or no distortion.v.intr. To become thin, weak, or fine.adj. (-yo͞o-ĭt)1. Reduced or weakened, as in strength, value, or virulence.2. Botany Gradually tapering to a slender point.
at·ten′u·a′tion n.at·ten·u·ate (ă-ten'yū-āt) To dilute, thin, reduce, weaken, diminish. [L. at-tenuo, pp. -tenuatus, to make thin or weak, fr. tenuis, thin]attenuate (of a leaf or plant structure) gradually tapering to a long slender point.Attenuate
AttenuateTo reduce the force or severity; to lessen a relationship or connection between two objects. In Criminal Procedure, the relationship between an illegal search and a confession may be sufficiently attenuated as to remove the confession from the protection afforded by the Fruit of the Poisonous Tree doctrine, thereby making it admissible as evidence in a criminal prosecution depending upon the facts of the case. attenuate
Synonyms for attenuateverb weakenSynonyms- weaken
- reduce
- contract
- lower
- diminish
- decrease
- dilute
- lessen
- sap
- water down
- adulterate
- enfeeble
- enervate
- devaluate
Synonyms for attenuateverb to lessen or deplete the nerve, energy, or strength ofSynonyms- debilitate
- devitalize
- enervate
- enfeeble
- sap
- undermine
- undo
- unnerve
- weaken
verb to lessen the strength of by or as if by admixtureSynonymsverb to become diffuseSynonymsSynonyms for attenuateverb weaken the consistency of (a chemical substance)SynonymsRelated Words- chemical science
- chemistry
- weaken
verb become weaker, in strength, value, or magnitudeRelated Wordsadj reduced in strengthSynonymsRelated Words |