Author: Glossary
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Osmic acid
A volatile, colorless compound formed by heating osmium in air. It is used as a caustic, a stain for fats, and a tissue fixative for electron microscopy.
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Osmesthesia
Olfactory sensibility; the power of perceiving and distinguishing odors.
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Osculation
The union of two vessels or structures by their mouths.
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Oscillopsia
The visual perception that stationary objects are swinging. This perception is an illusion, and is usually associated with vestibular dysfunction; also seen in multiple sclerosis. Continuous, involuntary, and chaotic eye movements that result in a visual disturbance in which objects appear to be jumping or bouncing.
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Oscillometer
A machine used to measure oscillations, especially those of the bloodstream.
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Oscillograph
An electronic device used for detecting, displaying, and recording variations in electrical phenomena. In medicine, electrocardiographs and electroencephalographs are examples of the application of this technique.
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Oscillogram
A graphic record made by the oscillograph.
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Oscillate
To rapidly move back and forth between two locations or physical states.
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Oscheolith
A calcification or stone in the scrotal sebaceous glands.
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Oscheohydrocele
Scrotal hydrocele; collection of fluids in the sac of a scrotal hernia.