• WordNet 3.6
    • adj astatic not static or stable
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Webster's Revised Unabridged Dictionary
    • a Astatic (Magnetism) 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.
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Century Dictionary and Cyclopedia
    • astatic Unstable; unsteady.
    • astatic 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. A needle may be rendered astatic in various ways, but most simply by the proximity of another needle of the same intensity fixed parallel to it, and with the poles reversed, the north pole of the one being adjacent to the south pole of the other. In this position the needles neutralize each other, and are therefore unaffected by the magnetism of the earth, though they are still subject to the influence of an electric current properly situated. Such needles were formerly employed in the electric telegraph, and they form an essential part of the astatic galvanometer.
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Chambers's Twentieth Century Dictionary
    • adj Astatic a-stat′ik having a tendency not to stand still: losing polarity, as a magnetic needle.
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Webster's Revised Unabridged Dictionary
Pref. a-, not + static,
Chambers's Twentieth Century Dictionary
Gr. neg., astatosa, neg., statos, verb. adj. of histanai, to stand.


In literature:

The loafing or astatic mind will fall into morbid tendencies.
"Evening Round Up" by William Crosbie Hunter
First Quene Kateryne sate in hire astate.
"A Chronicle of London from 1089 to 1483" by Anonymous
The presence of the current is easily shown with the astatic detectors.
"How Two Boys Made Their Own Electrical Apparatus" by Thomas M. (Thomas Matthew) St. John
Hence followed the astatic multiplying galvanometer.
"Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2" by Various
Near him his guardian angel holding a label, inscribed ANGELVS ASTAT.
"The Dance of Death" by Francis Douce
And All mygthty Jesu preserve yowr hye astat, my spesiall Lord, and send yow long lyve and good hele.
"The Paston Letters, Volume II (of 6)"

In news:

Nick Dalacu, of the Niagara Science Museum, 3625 Highland Ave, stands with an Astatic galvanometer circa 1870.
ASTATE parole officer and two of his bosses were fired Friday for their botched supervision of Rafael Jones, a career criminal who allegedly murdered a veteran Philly cop.
Clinch County turned three second-half turnoversinto points and beat Savannah Christian 24-14 to win the Class Astate championship.

In science:

These measurements use a drive coil of ND turns of radius RD and a pair of astatically wound receive coils of NR turns of a smaller radius RR mounted at some small distance d from the plane of the array (see f igure 2).
Dynamics of two-dimensional Josephson junction arrays
Line 4 declares a variable with name aState which is of type enum State.
Towards Symbolic Model-Based Mutation Testing: Combining Reachability and Refinement Checking
The action system then assigns variable aState value 2 and variable fromClosedAndLocked OR fromSilentAndOpen value 1, which corresponds to the state “Armed” in the state chart.
Towards Symbolic Model-Based Mutation Testing: Combining Reachability and Refinement Checking
Here Aexp denotes the measured (integrated) TTSA amplitude, δAstat (δAsyst ) its statistical (systematic) uncertainty, and AV GG is the value calculated at the average kinematics by a code5 based on the GPD model proposed by Goeke et al.3 .
Transverse target-spin asymmetry associated with DVCS on the proton and a resulting model-dependent constraint on the total angular momentum of quarks in the nucleon