| 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. |
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.