Cumulus and cumulonimbus clouds or thunderclouds are types of convective clouds.
From the sciencedaily.com
Number nine was the cumulonimbus, or thunderhead, so famous for violent weather.
From the al.com
It goes jetting through thoughts like an air plane through cumulonimbus clouds.
From the blogs.psychcentral.com
Cumulonimbus are tall, dense, and involved in thunderstorms and other bad weather.
From the en.wikipedia.org
Like other precipitation in cumulonimbus clouds hail begins as water droplets.
From the en.wikipedia.org
It said the plane had passed through tall, dense cumulonimbus thunderclouds.
From the telegraph.co.uk
In the modern system of cloud nomenclature, cumulonimbus is something of an anomaly.
From the en.wikipedia.org
Cumulonimbus storm cloud forming over the warm Gulf Stream along the Norwegian coast.
From the sciencedaily.com
They also form from the outflow of tropical cyclones or the anvils of cumulonimbus clouds.
From the en.wikipedia.org
More examples
A dark cloud of great vertical extent charged with electricity; associated with thunderstorms
Cumulonimbus (Cb) is a type of cloud that is tall, dense, and involved in thunderstorms and other intense weather. Cumulonimbus originates from Latin: Cumulus "accumulated" and nimbus "cloud". It is a result of atmospheric instability. ...
(pronounced cume-you-lo-NIM-bus) a tall, dark, ominous-looking cloud that produces thunderstorms. Also called thunderstorm cloud.
A vertically developed cumulus cloud, often capped by an anvil-shaped cirriform cloud. Also called a thunderstorm cloud, it is frequently accompanied by heavy showers, lightning, thunder, and sometimes hail, tornadoes or strong, gusty winds.
Convective cloud meaning accumulated cloud, where nimbus means rain and cumulus means convective. This cloud has a flat cloud bottom with great vertical growth and can extend up to 13 miles. ...
Precipitation-producing thunderstorm clouds with a flattened anvil-shaped top.
A huge cumuliform cloud of large vertical extent, resembling mountains or towers when viewed from the side. The upper portions may appear as a veiled or featureless mass, called an anvil. Cbs produce thunder and lightning. They are the only cloud to stretch almost the full depth of the troposphere.
A cloud belonging to a class indicative of thunderstorm conditions characterized by large, dense towers that often reach altitudes of 30,000 feet (9000 meters) or more, cumuliform except for their tops, which appear fibrous because of the presence of ice crystals. ...
A dense cloud with a lot of vertical development that looks like a large tower. Often the top is flattened, and spreads out above the cloud in an anvil shape. This is a storm cloud, and is often associated with precipitation and severe weather.