plural of collision detection

(computing, chiefly video games) The process or mechanism of determining whether two shapes are partially occupying the same space.

(informal) The use of polygraphs during interrogation in an attempt to verify the truth or falsity of a subject's responses / (broadly) The use of any technique intended to detect deception.

Having failed to be detected; not detected

Alternative spelling of house detective

A person employed by a privately owned establishment, such as a hotel or large retail store, with the job of preventing wrongdoing and apprehending violators of laws or other regulations.

A specialized form of police dog; trained to use its sense of smell to detect and locate evidence of illicit substances, from illegal drugs to explosives materials, which may be carried on a person in their effects.

(Canada, US, derogatory) A forestry official charged with measuring waste in logging operations.

(idiomatic) investigative research

plural of detection dog