I. ˈplü-vē-əl adjective
Etymology: Latin pluvialis, from pluvia rain, from feminine of pluvius rainy, from pluere to rain — more at flow
Date: circa 1656
1.
a. : of or relating to rain
b. : characterized by abundant rain
2. of a geologic change : resulting from the action of rain
II. noun
Date: 1929
: a prolonged period of wet climate