A bell hung on a mule.

(physics) A no-go theorem stating that no physical theory of local hidden variables can ever reproduce all of the predictions of quantum mechanics.

One of 120 counties in Kentucky, United States. County seat: Pineville. Named after Joshua Fry Bell.

(mathematics) The bell-shaped curve that is typical of the normal distribution.

(Britain, slang, vulgar) The glans penis. / (Britain, slang, offensive, vulgar) A stupid or contemptible person. (used as a term of abuse).

A buoy on which is mounted a bell with four clappers, hung inside an iron cage, which is rung by the motion of the waves

(nautical) A short length of rope, spliced to the eye of the clapper of a ship's bell and by which it is struck.

(informal, idiomatic) To seem at least vaguely familiar. / (informal, idiomatic) To spark a previously forgotten memory. / Used other than figuratively or idiomatically: see ring, a, bell.

(idiomatic) Extra features added for show rather than function; fancy additions or features.

(plural only) Pants that are flared from the knee downwards, a characteristic style of the 1970s.