Definition of isohyet in English:

isohyet

noun

Meteorology
  • A line on a map connecting points having the same amount of rainfall in a given period.

    • ‘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.’

Origin

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

Pronunciation:

isohyet

/ˌʌɪsə(ʊ)ˈhʌɪɪt/