| ANAMORPHOSCOPES | • anamorphoscopes n. Plural of anamorphoscope. • ANAMORPHOSCOPE n. an optical device, such as a cylindrical lens, for correcting an image that has been distorted by anamorphosis.
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| OESOPHAGOSCOPES | • oesophagoscopes n. Plural of oesophagoscope. • OESOPHAGOSCOPE n. an instrument for examining the oesophagus.
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| OPHTHALMOSCOPES | • ophthalmoscopes n. Plural of ophthalmoscope. • OPHTHALMOSCOPE n. an instrument for viewing the interior of the eye.
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| PHENAKISTOSCOPE | • phenakistoscope n. An early animation device consisting of a disc or drum which rotated, showing successive images through… • phénakistoscope n. Alternative form of phenakistoscope.
 • PHENAKISTOSCOPE n. an early form of cinematograph.
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| PHOSPHOROSCOPES | • phosphoroscopes n. Plural of phosphoroscope. • PHOSPHOROSCOPE n. an instrument for measuring the duration of phosphorescence after the source of radiation causing it has been removed.
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| ROENTGENOSCOPES | • roentgenoscopes n. Plural of roentgenoscope. • ROENTGENOSCOPE n. an apparatus for examining patients by use of X-rays, also RONTGENOSCOPE.
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| SCINTILLASCOPES | • SCINTILLASCOPE n. an instrument which shows scintillations on a screen, used to produce a scintigram, also SCINTILLOSCOPE. | 
| SCINTILLOSCOPES | • scintilloscopes n. Plural of scintilloscope. • SCINTILLOSCOPE n. an instrument for measuring gamma rays emitted by a radioactive body, also SCINTILLASCOPE.
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| SPINTHARISCOPES | • spinthariscopes n. Plural of spinthariscope. • SPINTHARISCOPE n. an instrument for visually detecting alpha particles.
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| SYNCHRONOSCOPES | • SYNCHRONOSCOPE n. an instrument used to indicate whether two periodic quantities or motions are synchronous. | 
| TELESTEREOSCOPE | • telestereoscope n. A binocular telescope used for producing a stereoscopic image of a distant object. • TELESTEREOSCOPE n. an instrument for viewing distant objects stereoscopically.
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| ULTRAMICROSCOPE | • ultramicroscope n. A microscope that uses bright illumination against a black background to view small particles. • ULTRAMICROSCOPE n. an instrument for viewing extremely small objects.
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