Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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noun
A layer in part of the stratosphere that has a larger than normal concentration of ozone; the ozone layer.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
a layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: ozone layer
Antonyms: none provided
Broader terms: layer
History
Etymology tree English ozone Ancient Greek -ο- (-o-)der. Latin -o-bor. English -o- Ancient Greek σφαῖρᾰ (sphaîră)bor. Latin sphaera Late Latin sphērader. Old French spherebor. Middle English spere English sphere English -sphere English ozonosphere From ozone + -o- + -sphere.
Across languages
12 source translations are retained for this English entry.
