Lexic.us

Definition of Astatic

1. Adjective. Not static or stable.

Definition of Astatic

1. a. 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.

Definition of Astatic

1. Adjective. Not static or stable; unsteady, unstable ¹

2. Adjective. (medicine) Of or pertaining to astasia ¹

¹ Source: wiktionary.com

Definition of Astatic

1. unstable [adj] - See also: unstable

Medical Definition of Astatic

1. 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. Astatic pair, a pair of magnetic needles so mounted as to be nearly or quite astatic, as in some galvanometers. Origin: Pref. A- not + static. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Astatic

Literary usage of Astatic

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Theory and Practice of Absolute Measurements in Electricity and Magnetism by Andrew Gray (1893)
"An astatic system when quite accurately mude has the needles exactly in one plane, and has almost ... An astatic galvanometer with directing magnet is shown ..."

2. A Treatise on Statics with Applications to Physics by George Minchin Minchin (1889)
"Some results connected with the astatic equilibrium of coplanar forces for ... I. The astatic conditions of a rigid body acted on by any forces have been ..."

3. Practical Electricity: A Laboratory and Lecture Course for First Year by William Edward Ayrton (1896)
"Thomson's astatic Galvanometers.—Usually in Sir William Thomson's astatic galvanometers the forces acting on the arrangement due to the earth's magnetism ..."

4. Practical Electricity: A Laboratory and Lecture-course, for First Year by William Edward Ayrton (1891)
"Such an arrangement is called an " astatic combination " of magnets, ... Thomson's astatic Galvanometers.—Usually in Sir William Thomson's astatic ..."

5. A Manual of the Mechanics of Engineering and of the Construction of Machines by Julius Ludwig Weisbach (1890)
"Pseudo-astatic Governors. — The defects of the perfectly astatic governors mentioned in the preceding articles have caused them to be little used in ..."

6. A Student's Manual of a Laboratory Course in Physical Measurements by Wallace Clement Sabine (1893)
"Join a Daniell cell, resistance box, tangent galvanometer and astatic needle ... By varying the resistance r the deflection in the astatic galvanometer can ..."

7. The Electrical Engineer (1888)
"The kinds of galvanometer employed were an ordinary astatic one of 100 ohms resistance, ... Between Between astatic galvanometer. Reflecting galvanometer. ..."

8. A Dictionary of Electrical Words, Terms and Phrases by Edwin James Houston (1903)
"astatic Circle.—A term sometimes used for astatic circuit. astatic Circuit. ... A galvanometer provided with an astatic needle or circuit. ..."

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