astheno-, asthen-; -asthenia, -asthenic

1. Mental impairment characterized by a defective ability to understand the spoken word.
2. Disturbance of that faculty of the mind that deals with speech.

A weakness of memory or a weakness of remembering events in the near past: Greg's great-grandfather's doctor diagnosed him as having mnemasthenia because he had a lot of trouble trying to recall what took place in previous times, and it wasn't due to any organic disease.

Abnormal muscle fatigue or weakness.

A disorder originally thought to result from neural exhaustion, including such symptoms as chronic fatigue, weakness, and irritability.

A condition in which hearing is limited exclusively to one ear, without ane evidence of a material lesion of the auditory apparatus.

1. Weakness of the muscles of the ear.
2. Defective hearing due to a paretic (slight or partial paralysis) condition of the tensor tympani or stapedius muscle (one of the muscles of the auditory ossicles, or a small bone, especially one of those in the middle ear, which transmit vibrations).

A condition in which there is a deficient sensitivity of the auditory apparatus.

1. Difficult or abnormal voice production, the enunciation being too high, too loud, or too hard.
2. Weakness or hoarseness of the voice; especially, that which results from bodily exhaustion.

An obsolete term for mental retardation; feeble-mindedness.

1. A neurotic state characterized by a lack of energy and decision and by obsessions, doubts, phobias, tics, etc.
2. A form of nervous weakness in which the psychical element is dominant.
3. Medical Latin, literally, "weakness of the soul" (from Greek "soul").

The study of mental retardation.