Mydriasis

Origin

From Latin mydriasis, from Ancient Greek μυδρίασις (mydriāsis, "undue enlargement of the pupil"), from μύδρος (mydros, "mass of red hot material in a forge"), possibly because the pupil is particularly bright or sparkling when dilated.

Full definition of mydriasis

Noun

1. (medicine) The condition of having abnormally large and dilated pupils due to disease or drugs, particularly stimulants such as (meth)amphetamines, cocaine, etc.

Antonyms

• miosis