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Definition of Myosis
1. Noun. An acute infectious disease occurring in epidemic form and featuring paroxysms of pain (usually in the chest).
Generic synonyms: Epidemic Disease
2. Noun. Reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller.
Generic synonyms: Inborn Reflex, Innate Reflex, Instinctive Reflex, Physiological Reaction, Reflex, Reflex Action, Reflex Response, Unconditioned Reflex
Derivative terms: Miotic, Myotic
Definition of Myosis
1. n. Long-continued contraction of the pupil of the eye.
Definition of Myosis
1. Noun. (alternative spelling of miosis) ¹
¹ Source: wiktionary.com
Definition of Myosis
1. miosis [n MYOSES] - See also: miosis
Lexicographical Neighbors of Myosis
Literary usage of Myosis
Below you will find example usage of this term as found in modern and/or classical literature:
1. The Principles and Practice of Ophthalmic Medicine and Surgery by Thomas Wharton Jones (1863)
"myosis AND MYDRIASIS. THE name myosis is given to an unnaturally contracted—that of
... To understand the nature of myosis, and mydriasis, it is necessary, ..."
2. A Practical Treatise on Ophthalmology by Lawrance Webster Fox (1920)
"Contraction of the pupil, or myosis, may be divided into irritation myosis, due
to an irritation of the pupil-contracting center or nerve fibers, ..."
3. Poisons: Their Effects and Detection by Alexander Wynter Blyth, Meredith Wynter Blyth (1906)
"The most suitable animal is the cat, the pupil of the cat readily showing either
state. Toxic myosis, or toxic contraction of the pupil. ..."
4. A Treatise on the Diseases of the Eye by John Soelberg Wells (1883)
"myosis may be caused by a spastic ¡iH'eetion of the sphincter ... The myosis due
to paralysis of the dilator muscle is met with in those spinal lesions in ..."
5. A Practical Treatise on Medical Diagnosis for Students and Physicians by John Herr Musser (1913)
"After myosis from local causes, especially from the sequels of iritis, ...
Irritation myosis is found in (a) the early stages at least of all inflammatory ..."
6. A Text-book on Nervous Diseases by Francis Xavier Dercum (1895)
"The irritation myosis, as just noted, is found in the inflammatory ... According to
the rule previously given, myosis may change to dilatation if the ..."
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