Any agent hired by a private party for the purpose of investigation or evidence gathering.

(chemistry) Any detergent in which the lipophilic part of the molecule is a cation; examples include long-chain quaternary ammonium compounds

(chemistry) Any detergent in which the lipophilic part of the molecule is an anion; examples include soaps and synthetic long-chain sulfates and sulfonates

(logic) A fallacy consisting in reasoning that because something happened, it was therefore bound to happen.

plural of collision detection

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

In a way that can be detected

(informal) A polygraph, a device which measures and records several physiological variables such as blood pressure, heart rate, respiration and skin conductivity while a series of questions is being asked to a subject, in an attempt to detect lies.

(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