1. (动植物)陆地的，陆生的，陆栖的
A terrestrial animal or plant lives on land or on the ground rather than in the sea, in trees, or in the air.

2. 地球的;地球上的
Terrestrial means relating to the planet Earth rather than to some other part of the universe.

3. (电视频道)地面的(有别于卫星转播的)
Terrestrial television channels are transmitted using equipment situated at ground level, and not by satellite.