ˈkyümyələs, ÷-mə- noun
( plural cumu·li -ˌlī, -ˌlē)
Etymology: Latin, heap — more at cumulate
1. : the acme of an accumulation : heap , accumulation
what a tremendous lot of stuff makes up the cumulus called “the home” — E.B.White
2.
[New Latin, from Latin]
: a massy cloud form usually occurring in the low or middle cloud regions at elevations between 2,000 and 15,000 feet, having a flat base and rounded outlines often piled up like a mountain, commonly appearing in the early afternoon on warm days, and sometimes affording rain or thunder gusts — see cloud illustration
3. or cumulus ooph·o·rus -ōˈäf(ə)rəs
[ cumulus, New Latin, from Latin; cumulus oophorus, New Latin, literally, ovarian heap]
anatomy : the projecting mass of granulosa cells that bears the developing ovum in a Graafian follicle