earthing

n. grounding, act of attaching electrical equipment to the earth; process of electrical safety whereby metal parts of electrical supplies are joined to a common ground point so that excess current can be carried away and cause the fuse to blow in case of a fault (Electricity)

v. ground, attach to the earth (about an electrical conductor); cover with soil

In electrical engineering, the term ground or earth has several meanings depending on the specific application areas. Ground is the reference point in an electrical circuit from which other voltages are measured, a common return path for electrical current (earth return or ground return), or a direct physical connection to the Earth.
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Noun
1. fastening electrical equipment to earth
(synonym) grounding
(hypernym) fastening, attachment
(derivation) earth

Noun
1. the loose soft material that makes up a large part of the land surface; "they dug into the earth outside the church"
(synonym) ground
(hypernym) material, stuff
(hyponym) moraine
2. the solid part of the earth's surface; "the plane turned away from the sea and moved back over land"; "the earth shook for several minutes"; "he dropped the logs on the ground"
(synonym) land, dry land, ground, solid ground, terra firma
(hypernym) object, physical object
(hyponym) America, the Americas
(part-holonym) Earth, world, globe
3. once thought to be one of four elements composing the universe (Empedocles)
(hypernym) element
(classification) archaism, archaicism
4. the concerns of the world as distinguished from heaven and the afterlife; "they consider the church to be independent of the world"
(synonym) worldly concern, earthly concern, world
(hypernym) concern
5. a connection between an electrical device and the earth (which is a zero voltage)
(synonym) ground
(hypernym) connection, connexion, connector, connecter, connective
Verb
1. hide in the earth like a hunted animal
(hypernym) hide, hide out
(derivation) ground
2. connect to the earth; "earth the circuit"
(hypernym) ground
(derivation) ground

(p. pr. & vb. n.)
of Earth
  

The process of making a satisfactory electrical connection between the structure, including the metal skin, of an object or vehicle, and the mass of the earth, to ensure a common potential with the earth. See also bonding; grounding. 1/7/80

Réalisation d'une liaison électrique adaptée entre la structure d'un objet ou d'un véhicule, revêtement métallique compris, et la terre dans le but de porter l'ensemble au même potentiel que la terre. Voir aussi métallisation; mise à la masse. 1/7/80