GRD has various meanings in the Weather category. Discover the full forms, definitions, and usage contexts of GRD in Weather.
The electric neutral line having the same potential as the surrounding earth; the negative side of a direct current power system; the reference point for an electrical system. 1. An electrical term meaning to connect to the earth. 2. A conducting connection, whether intentional or accidental by which an electric circuit, or equipment, is connected to the earth or some conducting body that serves in place of the earth.
WeatherLast updated: