Definitions
Century Dictionary and Cyclopedia
- n. An instrument for illustrating sound by means of light. It consists of a membrane upon which is a mirror. When the membrane is caused to vibrate by a sound, as that of the voice, the mirror exhibits this vibration on a screen by means of the movements of a ray of light reflected from it.
Wiktionary
- n. An instrument, consisting of a tube with one end open and the other end covered with a thin flexible membrane with a mirror attached to its centre, used for exhibiting upon a screen, by means of rays reflected from the mirror, the vibratory motions caused by sounds that enter the tube.
GNU Webster's 1913
- n. (Physics) 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.
Etymologies
- Ancient Greek (Wiktionary)
Examples
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Lists
These user-created lists contain the word ‘opeidoscope’.
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phrontistery - o
from phrontistery.info
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Logolepsy
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rays & x-rays
raised rays
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And the last first
Words with the first three or more letters repeated at the end, unless all letters are repeated (for those, see Isograms of lengths six, eight and ten). Overlaps are okay (alfalfa, entente), but wo...
nonphenomenon, underground, bicubic, ionization, microcosmic, nicotinic, interpoint, hotshot, atectate, ingesting, anemovane, physiography and 130 more...
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Miscellany, pt. o
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Tweets
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she The opeidoscope consists of a tube closed at one end by a taught membrane with a small mirror attached to its center, which vibrates in response to sound entering the tube at the open end, thereby causing a spot of light reflected by the mirror on to a screen to vibrate with varying amplitude and frequency according to the intensity and frequency of the sound. Aug 3, 2008