C3U1M3U1L1U1S1
11 points
CUMULUS is validvalid
a type of cloud [n CUMULI, CUMULUSES] : CUMULOUS [adj]
(Latin) a kind of cloud [n CUMULI or CUMULUSES]
a type of cloud [n CUMULI, CUMULUSES] : CUMULOUS [adj]
(Latin) a kind of cloud [n CUMULI or CUMULUSES]