Word Study
cumulus
OXFORD DICTIONARY
cumulus, n. (pl. cumuli) a cloud formation consisting of rounded masses heaped on each other above a horizontal base.
Derivative
cumulous adj.
Etymology
L, = heap
THESAURUS
cumulus
Cloudcuckooland, alto-cumulus, alto-stratus, anvil cloud, banner cloud, billowy cloud, cap cloud, cirro-cumulus, cirro-fillum, cirro-nebula, cirro-stratus, cirro-velum, cirrus, cirrus cloud, cirrus haze, cirrus stripe, cloud, cloud band, cloud bank, cloud drift, cloud mass, cloud street, cloudland, cloudling, cloudscape, cocktail, cottony cloud, cumulo-cirro-stratus, cumulo-cirrus, cumulo-nimbus, cumulo-stratus, cumulus cloud, curl cloud, fleecy cloud, fractocumulus, high fog, mackerel sky, mammatocumulus, mushroom cloud, nimbus, nimbus cloud, rain cloud, scud, snail cloud, squall cloud, storm cloud, strato-cumulus, stratus, stratus cloud, thundercloud, thunderhead, water carrier, woolpackROGET THESAURUS
cumulus
Bubble
N bubble; cloud, bubble, foam, froth, head, spume, lather, suds, spray, surf, yeast, barm, spindrift, cloud, vapor, fog, mist, haze, steam, geyser, scud, messenger, rack, nimbus, cumulus, woolpack, cirrus, stratus, cirrostratus, cumulostratus, cirrocumulus, mackerel sky, mare's tale, dirty sky, curl cloud, frost smoke, thunderhead, nephelognosy, nephograph, nephology, effervescence, fermentation, bubbling, nebula, cloudliness, nebulosity, bubbling, frothy, nappy, effervescent, sparkling, mousseux, frothy, up, cloudy, thunderheaded, vaporous, nebulous, overcast, the lowring element scowls o'er the darkened lands.For further exploring for "cumulus" in Webster Dictionary Online