The average (mean) pressure which, if imposed on the pistons uniformly from the top to the bottom of each power stroke, would produce the measured (brake) power output.

Alternative form of fraternal birth order effect

The scientific observation that a man's statistical probability of being homosexual increases with the number of older brothers he has.

plural of brake mean effective pressure

(physics) A physical phenomenon in which a change in the magnetic moment of a free body causes the body to rotate, as a consequence of the conservation of angular momentum.

Any attachment on the end of a robot that interacts with the environment, such as a device to lift parts. / The terminal moving part of a limb that interacts with the environment.

Producing the intended result; entirely adequate.

(transitive) To cause, bring about (an event); to accomplish, to carry out (a wish, plan etc.).

Having no effect or advantage.

(biology) Any muscle, organ etc. that can respond to a stimulus from a nerve. / (biology) The part of a nerve that carries a stimulus to a muscle etc.