Meaning & use
Astatic
Last updated
Having no tendency to settle in one particular position; lacking directional stability, especially of a magnetic or electrical instrument.
See it in a sentence
The astatic galvanometer was designed to cancel out the influence of Earth's magnetic field.
An astatic needle points in no fixed direction because opposing forces balance it out.
A note on using this word
Widely used in 19th-century physics to describe instruments built with paired magnets that neutralize external magnetic effects.
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