OZONE LAYER

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does ozone layer mean? 

• OZONE LAYER (noun)
  The noun OZONE LAYER has 1 sense:

1. a layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun

  Familiarity information: OZONE LAYER used as a noun is very rare.

 Dictionary entry details 

• OZONE LAYER (noun)

Sense 1

Meaning:

A layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun

Classified under:

Nouns denoting natural objects (not man-made)

Synonyms:

ozone layer; ozonosphere

Hypernyms ("ozone layer" is a kind of...):

layer (a relatively thin sheetlike expanse or region lying over or under another)

Meronyms (parts of "ozone layer"):

ozone hole (an area of the ozone layer (near the poles) that is seasonally depleted of ozone)

Holonyms ("ozone layer" is a part of...):

stratosphere (the atmospheric layer between the troposphere and the mesosphere)

 Context examples 

A more oxygen-rich atmosphere would have facilitated the emergence and viability of life on land, by generating an ozone layer, which shields against harmful ultraviolet rays from the sun.

(Size matters: if you are a bubble of volcanic gas, The Titi Tudorancea Bulletin)

Part of the good ozone layer is gone.

(Ozone, Environmental Protection Agency)

An increase in global UV with the diminishing of the ozone layer

(Global Change/UV, NCI Thesaurus)

Measurements from NASA satellites showed the hole in the Earth’s ozone layer that forms over Antarctica each September grew to only 7.6 million square miles in extent (coverage) before starting to recover this year.

(Warmth in the Antarctic stratosphere helped limit the size of the ozone hole in 2017 to the smallest observed since 1988, NOAA)

In regions such as Australia, where the ozone layer has been substantially depleted, it is estimated that approximately 2 in 3 people will be diagnosed with skin cancer by the time they reach the age of 70.

(New wristband provides personalised and real-time tracking of UV exposure, University of Granada)