OPEIDOSCOPES

Noun

opeidoscopes

plural of opeidoscope

Source: Wiktionary


OPEIDOSCOPE

O*pei"do*scope, n. Etym: [Gr. -scope.] (Physics)

Definition: An instrument, consisting of a tube having one end open and the other end covered with a thin flexible membrance to the center of which is attached a small mirror. It is used for exhibiting upon a screen, by means of rays reflected from the mirror, the vibratory motions caused by sounds produced at the open end of the tube, as by speaking or singing into it. A. E. Dolbear.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

12 March 2025

BUDGERIGAR

(noun) small Australian parakeet usually light green with black and yellow markings in the wild but bred in many colors


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Coffee Trivia

According to WorldAtlas, Finland is the biggest coffee consumer in the entire world. The average Finn will consume 12 kg of coffee each year.

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