Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to astatic: astatic seizure


1. Unsteady; unstable.
2. Physics Having no particular directional characteristics.

a·stat′i·cal·ly adv.
a·stat′i·cism n.


(æˈstætɪk; eɪ-)
1. not static; unstable
2. (General Physics) physics
a. having no tendency to assume any particular position or orientation
b. (of a galvanometer) having two mutually compensating magnets arranged so that the instrument is independent of the earth's magnetic field
[C19: from Greek astatos unsteady; see a-1, static]
aˈstatically adv
aˈstatiˌcism n
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.astatic - not static or stable
changeful, changeable - such that alteration is possible; having a marked tendency to change; "changeable behavior"; "changeable moods"; "changeable prices"
References in periodicals archive ?
Recording and playback equipment: Substrate-borne vibrations and video were recorded with a phonograph cartridge (Model 91T, Astatic, Solon, OH) and a custom-made amplifier, connected to a digital video camera (Model PV - DV400D, Panasonic, Secaucus, NJ).
The classic theory of Modigliani and Miller (1958) demonstrated this discution about the existence of a great capital structure, essentially viewed from an astatic aspect, without checking the changes over time.
Subsystem of ICE torque control attaches astatic property to improve the accuracy of control [M.
The need for improvement of the treatment of advanced and met astatic cervical cancer, the rationale for combined chemo-immunotherapy.
Ambient temperature and humidity during the training sessions was recorded using a digital hygrothermometer (Tako Astatic Technology, Malaysia).
Long-term follow-up of different clinical JME subtypes (classic JME; childhood absence epilepsy evolving to JME, JME with adolescent absence and JME with astatic seizures) conducted by Martinez-Juarey et al.
Valkov, "Adaptive astatic modal regulator for STATCOM", in Proc.
Key words: Dravet syndrome, epilepsy, infantile spasm, ketogenic diet, myoclonic astatic epilepsy