Pluvial

[ploo-vee-uh l] /ˈplu vi əl/

adjective
1.
of or relating to rain, especially much rain; rainy.
2.
Geology. occurring through the action of rain.
noun
3.
Geology. a rainy period formerly regarded as coeval with a glacial age, but now recognized as episodic and, in the tropics, as characteristic of interglacial ages.
/ˈpluːvɪəl/
adjective
1.
of, characterized by, or due to the action of rain; rainy: pluvial insurance
noun
2.
(geology) of or relating to rainfall or precipitation
3.
a climate characterized by persistent heavy rainfall, esp one occurring in unglaciated regions during the Pleistocene epoch
adj.

1650s, “pertaining to rain,” from French pluvial (12c.), from Latin pluvialis “pertaining to rain, rainy, rain-bringing,” from (aqua) pluvia “rain (water),” from fem. of pluvius “rainy,” from plovere “to rain,” from PIE root *pleu- “to flow, to swim” (cf. Sanskrit plavate “navigates, swims;” Greek plynein “to wash,” plein “to navigate,” ploein “to float, swim,” plotos “floating, navigable;” Armenian luanam “I wash;” Old English flowan “to flow;” Old Church Slavonic plovo “to flow, navigate;” Lithuanian pilu, pilti “to pour out,” plauju, plauti “to swim, rinse”).
pluvial
(pl’vē-əl)
Relating to or caused by rain.