mydriasis

noun
my·dri·a·sis | \mə-ˈdrī-ə-səs \

Definition of mydriasis 

: excessive or prolonged dilatation of the pupil of the eye

Other Words from mydriasis

mydriatic \ˌmi-drē-ˈa-tik \ adjective or noun

First Known Use of mydriasis

1684, in the meaning defined above

History and Etymology for mydriasis

Latin, from Greek

Keep scrolling for more

Learn More about mydriasis

Dictionary Entries near mydriasis

mydas fly

Mydaus

mydriasine

mydriasis

myel-

myelencephalon

-myelia

Statistics for mydriasis

Look-up Popularity

Time Traveler for mydriasis

The first known use of mydriasis was in 1684

See more words from the same year

Keep scrolling for more

More Definitions for mydriasis

mydriasis

noun
my·dri·a·sis | \mə-ˈdrī-ə-səs \
plural mydriases\-ˌsēz \

Medical Definition of mydriasis 

: excessive or prolonged dilation of the pupil of the eye

Comments on mydriasis

What made you want to look up mydriasis? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

lying above or upon

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!