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plu·vi·ous(plo͞o′vē-əs) also plu·vi·ose (-ōs′)
Characterized by heavy rainfall; rainy.
[Middle English, from Old French pluvieus, from Latin pluviōsus, from (aqua) pluvia, rain (water), feminine of pluvius, of rain, from pluere, to rain; see pleu- in Indo-European roots.]
plu′vi·os′i·ty (-ŏs′ĭ-tē) n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
of or relating to rain; rainy
[C15: from Late Latin pluviōsus full of rain, from pluvia rain, from pluere to rain]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014