bell-bottom trousers

A spider, Argyroneta aquatica, living almost entirely underwater, using hairs on its abdomen and legs to trap air.

plural of diving bell spider

(psychiatry) A condition in which the person is unconcerned with symptoms caused by a conversion disorder. A naive, inappropriate lack of emotion or concern for the perceptions by others of one's disability, usually seen in persons with conversion disorder.

Fragile X syndrome.

Alternative spelling of la belle indifference

(idiomatic) To strike or bump one's own head with a strong blow, especially with concussive force.

(idiomatic) To physically traumatize someone with a strong blow, especially a concussive blow to the head. / (idiomatic) To please; to satisfy greatly.

(UK, slang) To telephone someone.

plural of Mary Bell order