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so·le·noid

(sōlə-noid′)

1. A current-carrying coil of wire that acts like a magnet when a current passes through it.

2. An assembly used as a switch, consisting of a coil and a metal core free to slide along the coil axis under the influence of the magnetic field.

[French solénoïde, from Greek sōlēnoeidēs, pipe-shaped : sōlēn, pipe + -oeidēs, -oid.]

so′le·noidal(-noidl)adj.

so′le·noidal·lyadv.

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solenoid

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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