What is the term for pulling the camera backward while facing the set?

The term for pulling the camera backward while facing the set is indeed "dolly out." This technique involves moving the camera away from the subject, creating a visual effect where the subject appears to recede or become smaller within the frame. It is commonly used in filmmaking to create a sense of distance or to reveal more of the surrounding environment in relation to the subject.

Dolly out is distinct from other options. For example, "dolly in" refers to moving the camera closer to the subject, enhancing the viewer's focus on it. An "extreme close-up" is a shot that highlights a specific detail, such as a person's eye, and does not involve the movement of the camera. "Macro" typically refers to close-up shots that capture small subjects in great detail, often requiring specialized lenses but also does not pertain to the camera movement described in the question.