单词 | sinumbra |
释义 | siˈnumbra ? Obs. [ad. L. sine umbrā without a shadow.] sinumbra lamp (see quot. 1851–3).
1834M. Scott Cruise Midge (1863) 109 A mild radiance like that cast by the ground glass globe of a Sinumbra lamp. 1851–3Tomlinson's Cycl. Arts (1867) II. 5 In Phillips's Sinumbra lamp..the shadow if not destroyed is rendered imperceptible by the peculiar form given to the circular oil vessel. Hence siˈnumbral a.
1839Civil Eng. & Arch. Jrnl. II. 329/2 Sinumbral and pneumatic fountain lamps. 1854Lardner's Museum Sci. & Art II. 207 The old English ring-lamp called the Sinumbral lamp. |

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