Seeing these new artifically designed creatures at home, as the result of breeding, he coined the term to explain the variation of species around the islands and (by extension of his theory) also around the world.

Artificial Selection

Explanation: Artificial Selection is described as the identification of desirable traits in both plants and animals, then enhance them, so that those traits can be manifested in future generations.

This is the scope behind cross breeding of plants and animals and this have largely been used in agricultural sector to improve input (such as disease-resistant seeds) and other biotechnological settings.

Darwin's described artificial selection as the human form of natural selection.

it is a negative acceleration