a. [f. prec. + -AL.] Of, pertaining or relating to, a solenoid; of the nature or having the properties of a solenoid.

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1873.  Maxwell, Electr. & Magn., I. 21. The distribution of the vector quantity is said to be Solenoidal.

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1883.  Encycl. Brit., XV. 230/2. Solenoidal Magnets … [are] such that the vector I satisfies the solenoidal condition.

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1897.  Curry, Theory Electr. & Magnetism, 256. This solenoidal arrangement of the molecular currents.

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  Hence Solenoidally adv.

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1883.  Encycl. Brit., XV. 231/1. When a body is solenoidally magnetized. Ibid. The magnetic action of a solenoidally magnetized body.

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