Assertion: cumulonimbus cloud | /r/HasProperty | thundercloud
Facets:
value: commonly
type: DEGREE
Source sentences:
text: A flammagenitus that produces lightning is actually a type of cumulonimbus, a thundercloud, and is called cumulonimbus flammagenitus.
text: Cumulonimbus Clouds (thunderclouds)
text: More commonly known as thunderclouds, cumulonimbus are the only cloud type that can produce hail, thunder and lighting.
text: A tornado is a violent, rotating column of air in contact with both the surface of the earth and a cumulonimbus cloud (otherwise known as a thundercloud) or, in rare cases, the base of a cumulus cloud.