单词 | episcotister |
释义 | episcotister|ɛpɪskəˈtɪstə(r)| [f. Gr. ἐπισκοτίζειν to throw a shadow or darkness over, f. ἐπί upon + σκότος darkness: see -ist and -er1.] An apparatus for admitting light into a darkened room by means of adjustable discs.
1905Titchener Exper. Psychol. II. 80 The episcotister is placed as close as possible to the screen. 1939Brit. Jrnl. Psychol. Oct. 140 Adjustment of the variable episcotister aperture. |

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