Meaning of CUMULUS in English
/kyooh"myeuh leuhs/ , n. , pl. cumulus .
1. a heap; pile.
2. a cloud of a class characterized by dense individual elements in the form of puffs, mounds, or towers, with flat bases and tops that often resemble cauliflower: as such clouds develop vertically, they form cumulonimbus.
[ 1650-60; ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012