Simple Definition of thunderhead
: a very large cloud appearing before a thunderstorm
Full Definition of thunderhead
: a rounded mass of cumulus or cumulonimbus cloud often appearing before a thunderstorm
Examples of thunderhead in a sentence
A thunderhead was forming to the west.
First Known Use of thunderhead
THUNDERHEAD Defined for Kids
Definition of thunderhead for Students
: a rounded mass of dark cloud with white edges often appearing before a thunderstorm
Seen and Heard
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