ombro-

ombro-

combining form
(Physical Geography) indicating rain: ombrogenous; ombrophilous.
[from Greek ombros shower of rain]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014