transitive verb-·rat′ed, -·rat′ing
to reduce the electrical power rating of (a nuclear power plant, furnace, electrical component, etc.) to improve safety, reliability, or efficiency
transitive verbde·rat·ed, de·rat·ing, de·rates
- 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).
Origin of deratede- rate 1
(third-person singular simple present derates, present participle derating, simple past and past participle derated)
- 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.
de- + rate