Definition of isohyet in English:

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Pronunciation: /ˌʌɪsə(ʊ)ˈhʌɪɪt/


A line on a map connecting points having the same amount of rainfall in a given period.
Example sentences
  • These are rainfall isohyets (in mm) for the Maitland flood event of February 1955.
  • This area belongs to the carob tree forest located in a saline depression between the annual 300-400 mm isohyets.
  • Not surprisingly, the isohyets match these vegetation zones closely, as they should.


Late 19th century: from iso- 'equal' + Greek huetos 'rain'.

For editors and proofreaders

Line breaks: iso|hyet

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