| 单词 |
sensitizer |
| 释义 |
sensitizer|ˈsɛnsɪtaɪzə(r)|
[f. sensitize v. + -er1.]
1. Photogr. A substance or preparation used for sensitizing.
1873G. Dawson Hardwich's Man. Photogr. 132 To apply the Ammonio-nitrate Sensitizer, the paper should not be floated on it. 1889Anthony's Photogr. Bull. II. 314 The addition to a sensitive film of certain coloring matters, which are known as optical sensitisers or selective sensitisers, renders the film sensitive to rays which would otherwise produce little or no photographic effect.
†2. Immunol. = sensitizin. Obs.
1903Nature 13 Aug. 360/2 The sensitizers of the tubercle bacillus. 1935N. P. Sherwood Immunol. vi. 112 Anaphylactic sensitizers.—Many persons have considered these interesting antibodies as identical with the precipitins but more recently some doubt has been cast on this hypothesis.
3. Psychol. A person or thing that has a sensitizing effect; one who reacts by being sensitive to a stimulus (rather than repressing it).
1948Jrnl. Abnormal & Soc. Psychol. XLIII. 151/2 Nature orientation acts as a sensitizer, lowering thresholds for acceptable stimulus objects. Let us call this mechanism selective sensitization. 1951Ibid. XLVI. 557/1 Needs could act as sensitizers, lowering the recognition thresholds for need-related stimuli. 1972S. R. Maddi Personality Theories v. 207 Psychiatric outpatients were.. classified on the basis of their therapeutic interviews and other clinical tests as either sensitizers or repressers. 1976Psychol. Rep. XXXIX. 189 The death message resulted in significantly more..anxiety than the neutral message for repressors as well as for sensitizers. |
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