myosis

[ mahy-oh-sis ]
/ maɪˈoʊ sɪs /

noun Medicine/Medical.

miosis.

Words nearby myosis

myosarcoma, myosclerosis, myoscope, myosin, myosin filament, myosis, myositic, myositis, myositis fibrosa, myositis ossificans, myosotis

Definition for myosis (2 of 2)

miosis

or my·o·sis

[ mahy-oh-sis ]
/ maɪˈoʊ sɪs /

noun, plural mi·o·ses [mahy-oh-seez] /maɪˈoʊ siz/. Medicine/Medical.

excessive constriction of the pupil of the eye, as a result of drugs, disease, or the like.
Compare mydriasis.

Origin of miosis

1810–20; variant of myosis < Greek mý(ein) to shut (the eyes) + -ōsis -osis

Example sentences from the Web for myosis

  • Myosis produced by means of solutions of various drugs, a myosis followed by reduction of intra-ocular tension.

    Glaucoma |Various

  • An example of this kind of myosis is the action of muscarine.

    Poisons: Their Effects and Detection |Alexander Wynter Blyth

  • Examination showed slight atrophy of both optic nerves, Argyll-Robertson pupil, and myosis.

    Fat and Blood |S. Weir Mitchell

British Dictionary definitions for myosis (1 of 2)

myosis
/ (maɪˈəʊsɪs) /

noun plural -ses (-siːz)

a variant spelling of miosis

British Dictionary definitions for myosis (2 of 2)

miosis

myosis

/ (maɪˈəʊsɪs) /

noun plural -ses (-siːz)

excessive contraction of the pupil of the eye, as in response to drugs
a variant spelling of meiosis (def. 1)

Derived forms of miosis

miotic or myotic (maɪˈɒtɪk), adjective, noun

Word Origin for miosis

C20: from Greek muein to shut the eyes + -osis

Medical definitions for myosis (1 of 2)

myosis
[ mī-ō′sĭs ]

n.

Variant ofmiosis

Medical definitions for myosis (2 of 2)

miosis

n. pl. mi•o••ses (-sēz)

The period of decline of a disease in which the intensity of the symptoms begins to diminish.
Constriction of the pupil of the eye, resulting from a normal response to an increase in light or caused by certain drugs or pathological conditions.