noun
- large, dark clouds that produce thunder and lightning during storms
Usage: plural form of thundercloud
Examples
- Dark thunderclouds gathered on the horizon before the storm hit.
- The thunderclouds blocked out the sun completely.
- We could see lightning flashing inside the massive thunderclouds.
- The pilot had to navigate around the dangerous thunderclouds.
- Heavy rain began falling from the thunderclouds overhead.
- The thunderclouds rolled across the prairie like a gray wall.