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Towering vertical storm cloud
Answer for the clue "Towering vertical storm cloud ", 12 letters:
cumulonimbus
Word definitions for cumulonimbus in dictionaries
Douglas Harper's Etymology Dictionary
Word definitions in Douglas Harper's Etymology Dictionary
1887, from cumulo- , comb. form of cumulus , + nimbus .
Wiktionary
Word definitions in Wiktionary
n. A cloud, with a tall structure and a flat base, that is often associated with thunderstorms.
WordNet
Word definitions in WordNet
n. a dark cloud of great vertical extent charged with electricity; associated with thunderstorms [syn: cumulonimbus cloud , thundercloud ] [also: cumulonimbi (pl)]
Usage examples of cumulonimbus.
Most precipitation, he vaguely remembered learning once, fell from nimbostratus, altostratus or cumulonimbus clouds.
The columns and pillars were towering mountains of cumulus and cumulonimbus, their anvil-shaped bases disappearing in the darkening depths hundreds or thousands of kilometers below my floating kayak, their rounded summits billowing high into the halo-tinged cirrostratus hundreds or thousands of kilometers above me.
Purple-gray cumulonimbi were piling up to great heights, crowding in from the west, borne on the back of a keen salt wind.
It coalesced into a compact cumulonimbus cloud which began first to rumble, then to flash ominously.
Surplus energy was transferred to defensive systems, and the aura of power surrounding the ship bloomed like a cumulonimbus cloud.
The anvilheads topping the cumulonimbus clouds reached high into the tropopause, well above Volkenreiter'$ service ceiling.
Baedecker and Scott sat in the VIP stands near the Vehicle Assembly Building and watched across the turning basin canal as high cirrus from the west quickly were replaced by cumulonimbus.