Read the following sentence.

"Generally, however, the term robot refers to any machine that is able to perform a complex task on its own, but whose actions or tasks are controlled by human programming."

This is an example of

an informal definition

an extended definition

a dictionary definition

a formal definition

An extended definition.

Explanation:

An extended definition is one or more paragraph that further explain the meaning of the subject matter. It allow the writer to completely define and explain the subject matter by using his own words or sentence so as to further buttress on it and supply more information for easy understanding.

From the paragraph, Generally, however, the term robot refers to any machine that is able to perform a complex task on its own, but whose actions or tasks are controlled by human programming." It further explain and define Robots.