conversion disorder

noun, Psychiatry.
1.
a mental disorder in which physical symptoms, as paralysis or blindness, occur without apparent physical cause and instead appear to result from psychological conflict or need.
Also called conversion hysteria.
British Dictionary definitions for conversion disorder

conversion disorder

noun
1.
a psychological disorder in which severe physical symptoms like blindness or paralysis appear with no apparent physical cause
conversion disorder in Medicine

conversion disorder n.
A disorder involving the loss or alteration of physical functioning, such as paralysis, voice loss, tunnel vision, or seizures, that is the result of a psychological involvement or need rather than a physical illness or disease. Also called conversion hysteria, conversion hysteria neurosis, conversion reaction.