astheno-, asthen-; -asthenia, -asthenic
(Greek: without strength)
angiasthenia
Instability or loss of tone in the vascular system.
angioasthenia
Spasmodic variability in the tone of blood vessels.
antasthenic
Strengthening or invigorating.
asthenia
Lack or loss of strength and energy; weakness; debility or diminution of the vital forces.
asthenic
1. Relating to or exhibiting asthenia; weak.
2. Having a slender, lightly muscled physique.
asthenobiosis
1. A period of reduced metabolic activity (chemical and physical processes involved in the maintenance of life).
2. Either the condition of an inactive larva not yet metamorphosed to a pupa or autointoxication, particularly among insects.
asthenocoria
Sluggish pupillary light reflex.
asthenometer
asthenophobia
An unexplained fear of weakness; such as by losing one’s physical, social, or some kind of political control. It may also be a fear of fainting.
asthenopia
Eye weakness, or strain; often causing headache, ocular discomfort, dimness of vision, etc.
asthenopodia
A condition in which one has weak feet.
asthenosphere
A zone beneath the earth’s surface that lies beneath the lithosphere and consists of several hundred kilometers of weak material that readily yields to persistent stresses.
cardiasthenia
cerebrasthenia
ergasthenia
1. A condition of impairment or weakness caused by overwork.
2. Etymology: from Greek ergon, "work" + asthenos, "weakness".
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