solenoidal

[soh-luh-noid-l, sol-uh-]
adjective
1.
of or pertaining to a solenoid.
2.
Mathematics. (of a vector or vector function) having divergence equal to zero.

Origin:
1870–75; solenoid + -al1

solenoidally, adverb
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World English Dictionary
solenoid (ˈsəʊlɪˌnɔɪd)
 
n
1.  a coil of wire, usually cylindrical, in which a magnetic field is set up by passing a current through it
2.  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
3.  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
 
[C19: from French solénoïde, from Greek sōlēn a pipe, tube]
 
sole'noidal
 
adj
 
sole'noidally
 
adv

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Example sentences
One specific concern is the effect of solenoidal spin rotators proposed for the interaction straight section.
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