the world > matter > physics > electromagnetic radiation > electricity > transmission of electricity, conduction > conduction to earth > connect to earth [verb (transitive)] (3)
To connect with the earth as an electrical conductor. Also absol. Chiefly U.S.
transitive. To connect to the ground as an electrical conductor; to fit or supply with an earth connection; = ground, v. 10c. Cf. earth, n.1 6a, ea…