Used specifically in geological contexts to describe rock formations. The geologist explained that the nappe was evidence of historical seismic activity.
Pro Tip 2/3
Technical Usage
Often found in specialized or academic texts rather than everyday conversation. In our geology class, we learned about how nappes are formed.
Pro Tip 3/3
Not Commonly Known
The term may not be familiar to those outside the field of geology. He was puzzled when he read about nappes in the science journal.