georeactor

Noun

 * 1) A geologically occurring slow fission reactor, especially in the Earth's past.
 * 2) Any man-made industrial structure built into the Earth's crust and operating on the principle of nuclear fission.
 * 3) The theorized natural fission reactor at the center of the Earth which would account for the geomagnetic field.
 * 1) The theorized natural fission reactor at the center of the Earth which would account for the geomagnetic field.