Hyetal definition
Of or relating to rain or rainy regions.
adjective
Relating to rain or rainy regions, used especially in regard to isohyetal rainfall maps.
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Origin of hyetal
- From Greek hūetos rain seuə-2 in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
- From Ancient Greek ὑετός (huetos, “rain").
From Wiktionary