astheno-, asthen-; -asthenia, -asthenic

(Greek: without strength)

leiasthenia
logasthenia
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.
mnemasthenia
A weakness of memory.
myasthenai
myasthenia
Abnormal muscle fatigue or weakness.
myasthenic
neurasthenia
A disorder originally thought to result from neural exhaustion, including such symptoms as chronic fatigue, weakness, and irritability.
otohemineurasthenia
A condition in which hearing is limited exclusively to one ear, without ane evidence of a material lesion of the auditory apparatus.
otomyasthenia
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).
otoneurasthenia
A condition in which there is a deficient sensitivity of the auditory apparatus.
parasthenia
phonasthenia
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.
phrenasthenia
An obsolete term for mental retardation; feeble-mindedness.
psychasthenia
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").
psychoasthenics
The study of mental retardation.