In many science fiction stories, rendering one's self invisible to either sensors or the naked eye was called "cloaking". In most instances, when either a vehicle or a person was cloaked, they could not attack as cloaking takes up too much energy, and it would be unfair anyway.

Cloak"ing, n.

1.

The act of covering with a cloak; the act of concealing anything.

To take heed of their dissembings and cloakings. Strype.

2.

The material of which of which cloaks are made.

© Webster 1913.