distancer

Noun

 * 1)  A person who tends to maintain emotional distance and detachment.
 * °N, °W
 * 1) A means for establishing physical or emotional distance.
 * 1) A means for establishing physical or emotional distance.

Noun

 * 1)  A long-distance runner.

Etymology
Borrowed from.

Verb

 * 1)  to distance, outdistance