adjective. Unsteady; unstable.

adjective. Having no particular directional characteristics.

Unstable; unsteady.

Hence In physical, having no tendency to take a definite (fixed) position; without directive power: used especially of a magnetic needle whose directive property has been neutralized.

adjective. Having little or no tendency to take a fixed or definite position or direction: thus, a suspended magnetic needle, when rendered astatic, loses its polarity, or tendency to point in a given direction.

adjective. a pair of magnetic needles so mounted as to be nearly or quite astatic, as in some galvanometers.

adjective. Not static or stable; unsteady, unstable

adjective. Of or pertaining to astasia

adjective. not static or stable

"Quartz fibres have two great advantages over other forms of suspension when employed for any kind of torsion balance, from an ordinary more or less "astatic" galvanometer to the Cavendish apparatus."

changeable  changeful  

a-gallon  acceptable  aspecific  avowable  box-type