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
ozone layer
1 ENTRIES FOUND:
ozone layer
(noun)
ozone layer
noun
ozone layer
noun
Britannica Dictionary definition of OZONE LAYER
[
noncount
]
:
a layer of ozone in the upper atmosphere that prevents dangerous radiation from the Sun from reaching the surface of the Earth
ASK THE EDITOR
What is the antonym of
motivated
?
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
submerge
:
to cover (someone or something) with a liquid
Learn More »