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An isoline connecting points on the Earth's surface that have the same mean summer rainfall.
Definition source: English Wiktionary via Wiktextract
Topics: geography, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
From iso- + Ancient Greek θέρος (théros, “summer”) + Ancient Greek ὄμβρος (ómbros, “rain, rainstorm”) + -ose.