noun Etymology: International Scientific Vocabulary is- + Greek hyetos rain, from hyein to rain; probably akin to Tocharian B swese rain Date: 1899 a line on a map or chart connecting areas of equal rainfall, ~al adjective
ISOHYET
Meaning of ISOHYET in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012