(informal) A pain in the head from eating or drinking something cold; a cold-stimulus headache / (psychology) Failure to remember something, with the sense that recall is imminent.

(idiomatic) One's own idea or conception.

(slang) To shoot in the head.

plural of brain trust

plural of brains trust

Either of the two characters { and }, i.e., left curly bracket { and right curly bracket }, with the shape of a curved, pointed line, having various uses in math, music, computer programming and chemistry.

plural of brain fart

Alternative spelling of brain-dead

A hollow metal cylinder, attached to a wheel of a vehicle, to which pressure is applied when braking.

A form of brake in which friction is applied by pads to the inner surface of a rotating cylinder (the brake drum) connected directly to a wheel