单词 | melanoscope |
释义 | melanoscope|ˈmɛlənəʊskəʊp| [ad. G. melanoskop: see melano- and -scope.] A combination of coloured glasses, devised by Lommel in 1871 (Pogg. Ann. CXLIII. 489) for exhibiting certain optical properties of chlorophyll; by intercepting nearly all except the middle red rays of the spectrum, it causes green plants seen through it to appear almost black.
1876Catal. Spec. Collect. Sci. Appar. S. Kens. Mus. (ed. 3, 1877) 247 Melanoscope. Prof. Dr. Lommel, Erlangen. 1884in Knight Dict. Mech. Suppl. (with incorrect explanation, followed in later Dicts.). |

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