To lower the rating of (a device), especially because of a deterioration in efficiency or quality.
To lower the financial rating of (a corporation, for example).
To reduce the electrical power rating of (a nuclear power plant, furnace, electrical component, etc.) to improve safety, reliability, or efficiency.
To lower the rated capability of any rated equipment or material.
The derated engine sold at a lower price, but had the same components as the standard model.
Origin of derate
- de– rate
From American Heritage Dictionary of the English Language, 5th Edition
- de- + rate