See Also: Ruhmkorff coil(dictionary)
ruhmkorff's coil(medicine)
coil(2)(dictionary)
Coil(medicine)
coil(1)(dictionary)
e-coil(medicine)
coil(dictionary)
surface coil(medicine)
random coil(medicine)
coil 1, verb(dictionary)

Ruhmkorff coil (iou)



Ruhmkorff coil noun phr. obsolete exc. Hist. M19.
[Heinrich Daniel Ruhmkorff (1803-77), German-born inventor.]
Physics. A powerful type of induction coil.