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Glite Dictionary
myosis

myosis

9.9
The pupil becomes smaller because of bright light or some drugs
  • noun
  • /maɪˈoʊsɪs/
  • Specialized
translation icon : miosis
  • The doctor noted pronounced myosis when she shone the light in his eyes.

Examples

  • After exposure to bright light, myosis occurs.

  • Sudden myosis may signal neurological changes that require medical attention.

  • Certain medications can induce myosis as a side effect.

  • The doctor observed myosis in the patient's eyes.

  • Certain medications can induce myosis as a side effect.

  • The doctor noted pronounced myosis when she shone the light in his eyes.

  • Sudden myosis may signal neurological changes that require medical attention.

Synonyms

miosis
vsmyosis
  • Specialized
1 9.9

The pupil of the eye becomes smaller in bright light or after some drugs

is the alternative spelling that uses a y instead of i
light reflex
vsmyosis
  • Specialized
1 5.3

An automatic change that makes the pupil smaller in bright light or after some drugs

is the precise clinical name for this iris sphincter response
pupillary reflex
vsmyosis
  • Specialized
7.0

An automatic narrowing of the pupil in bright light or after some medicines

is the single-word scientific term for that same reflex

Antonyms

mydriasis
  • Specialized
9.9

The eye's black center widens more than normal, often from medicines or injury

Surface Forms

myosis singular
myoses plural

Morphology

myosis = myo + osis

A technical medical formation (combining form + -osis) that is not transparently interpretable by an average B1 learner and may be confused with the familiar combining form 'myo-' meaning 'muscle'.

Etymology

Myosis comes from a Greek root myo- meaning 'to shut' or 'close'. So myosis is when the pupil of the eye 'shuts' and becomes smaller.