Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

353. [Mixture of air and water.] Bubble [Cloud.] — N. 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. [Science of clouds] nephelognosy†; nephograph†, nephology†. effervescence, fermentation; bubbling &c v.. nebula; cloudliness &c (opacity) 426 [Obs.]; nebulosity &c (dimness) 422. V. bubble, boil, foam, froth, mantle, sparkle, guggle†, gurgle; effervesce, ferment, fizzle. Adj. bubbling &c v.; frothy, nappy†, effervescent, sparkling, mousseux [Fr.], frothy [Fr.Tr.], up. cloudy &c n.; thunderheaded†; vaporous, nebulous, overcast. Phr. the lowring element scowls o'er the darkened landscip [Paradise Lost].