1. Marked by excessive or uncontrollable emotion.
2. Characterized by being emotionally out of control.
3. Referring to being irrational from fear, emotion, or an emotional shock.

A unilateral or bilateral functional loss of vision involving great variations in the extent of the visual fields; seen in hysteria.

Loss of the sense of pain in the skin which is associated with some psychiatric conditions, taking on geometric configurations or conforming to zones covered by various articles of clothing: In her panic, Isabel experienced hysterical anesthesia because she couldn't feel any sensations on her back where her jacket was so tight.

The inability to speak, seen in the conversion type of hysterical neurosis.

A hysterical (excessive or uncontrollable emotion) attack, fit, or convulsion.

The apparent difficulty in walking seen in hysterical individuals, often characterized by marked swaying, zigzag steps, superfluous movements, and faked falling by which the person dramatizes the disability.

The complaints or acting out by an individual of the symptoms of an illness or of a behavior disorder known to him from experience, hearsay, or reading.

A hysterical phenomenon, as in hysteroepilepsy.

A form of neurosis in which there is an involuntary disturbance or loss of psychogenic origin of motor, sensory, or mental function.

Characteristically, the symptoms begin and end suddenly in situations which are emotionally charged and which are symbolic of underlying, usually repressed conflicts; frequently the symptoms can be modified by suggestions.

Muscle weakness, or paralysis, without loss of reflex activity, in which no organic lesion can be demonstrated.

An individual whose behavior is characterized by excitability, instability under, and over-reaction to, minor stress; self-dramatization; attention-seeking; and often seductiveness.

Such individuals tend to be immature, undependable in their judgment, self-centered, vain, and dependent on others.

A term sometimes used to describe an acute episode or gross stress reaction in a hysterical personality, usually manifested by sudden, bizarre, histrionic, violent, and volatile behavior.

Increased resistance to passive movement resulting from hysteria (neurotic disorder characterized by violent emotional outbreaks and disturbances of sensory and motor functions) and not from organic nervous disease.

A specific, peculiar phenomena or symptoms of uncontrolled excitement or neurosis: The hysterical stigmas involve peculiar phenomena or symptoms of anesthesia, hyperesthesia, reversal of the visual color field, amblyopia of sudden onset with normal pupillary responses, and impairment of the senses of hearing, of taste, and of muscular senses.