- unstable; unsteady.
- Physics. having no tendency to take a definite position or direction.
Origin of astatic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for astatic
The loafing or astatic mind will fall into morbid tendencies.Evening Round Up</p>
William Crosbie Hunter
Astatic, a-stat′ik, adj. having a tendency not to stand still: losing polarity, as a magnetic needle.
By arranging two magnetized needles with their poles opposite each other, Fig. 92, an astatic needle is formed.
Fig. 67 shows an astatic galvanometer for measuring weak currents.
The ends of the coil are to be connected to an astatic galvanoscope; this forms a closed circuit.
- not static; unstable
- having no tendency to assume any particular position or orientation
- (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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for astatic
Online Etymology Dictionary, © 2010 Douglas Harper
- Relating to astasia.
- Unsteady; unstable.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.