from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An instrument used to detect the presence and determine the direction of electric currents by the deflection of a magnetic needle.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a device used to detect electric currents using the deflection of a magnetic needle
from the GNU version of the Collaborative International Dictionary of English
- n. An instrument or apparatus for detecting the presence of electrical currents, especially such as are of feeble intensity.
from The Century Dictionary and Cyclopedia
- n. An instrument for detecting the existence and direction of an electric current. A magnetic needle may be used as a galvanoscope.
Sorry, no etymologies found.