The Britannica Dictionary
mobile search
Home
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
×
Britannica Homepage
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
The Britannica Dictionary
astigmatism
1 ENTRIES FOUND:
astigmatism
(noun)
astigmatism
/ə
ˈ
stɪgməˌtɪzəm/
noun
astigmatism
/ə
ˈ
stɪgməˌtɪzəm/
noun
Britannica Dictionary definition of ASTIGMATISM
[
noncount
]
medical
:
a problem with the eye that prevents a person from seeing clearly
— astigmatic
/ˌæstɪg
ˈ
mætɪk/
adjective
[
more astigmatic; most astigmatic
]
astigmatic
eyes
[+] more examples
[-] hide examples
[+] Example sentences
[-] Hide examples
ASK THE EDITOR
What are the plural forms of
check-in
,
passerby
, and
spoonful
?
See the answer »
QUIZZES
Vocabulary Quiz
Test your word power
Take the Quiz »
Name That Thing
Take our visual quiz
Test Your Knowledge »
WORD OF THE DAY
expensive
:
costing a lot of money
Learn More »