Electricity. an electric conductor wound as a helix with small pitch, or as two or more coaxial helices, so that current through the conductor establishes a magnetic field within the conductor.
Also called solenoid switch . a switch controlled by such an arrangement, in which a metal rod moves when the current is turned on: used in automotive starting systems.
Meteorology. a space formed by the intersection of isobaric and isosteric surfaces.
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How to use solenoid in a sentence
The amount the armature B is rotated will depend upon the relative effects of the pole of the solenoid and the permanent magnet G.The Boy Mechanic, Book 2 | Various
The effect can be very greatly increased by providing the solenoid with a soft-iron core.The New Gresham Encyclopedia | Various
It was International code—being sent as fast as the solenoid could be operated.The Velvet Glove | Harry Harrison
Such a low, parallel magnetic field would quite probably be found inside of a simple solenoid coil.Where I Wasn't Going | Walt Richmond
On the lower horizontal roller carrying the supply of paper is a ratchet and pawl movement, actuated by a solenoid.Practical Cinematography and Its Applications | Frederick Arthur Ambrose Talbot
British Dictionary definitions for solenoid
a coil of wire, usually cylindrical, in which a magnetic field is set up by passing a current through it
a coil of wire, partially surrounding an iron core, that is made to move inside the coil by the magnetic field set up by a current: used to convert electrical to mechanical energy, as in the operation of a switch
such a device used as a relay, as in a motor vehicle for connecting the battery directly to the starter motor when activated by the ignition switch
- solenoidal, adjective
- solenoidally, adverb
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
Scientific definitions for solenoid
A coil of wire that acts as an electromagnet when electric current is passed through it, often used to control the motion of metal objects, such as the switch of a relay.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.