Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
ozone hole | Yes | No | No | No |
ozone layer | Yes | No | No | No |
ozone hole (noun) | ozone layer (noun) |
---|---|
an area of the ozone layer (near the poles) that is seasonally depleted of ozone | a layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun |