|a psychological disorder in which severe physical symptoms like blindness or paralysis appear with no apparent physical cause|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
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.