For example, if kidney cancer spreads to the lungs, the cancer cells in the lungs are actually kidney cancer cells. The disease is metastatic kidney cancer, not lung cancer. It is treated as kidney cancer, not lung cancer. Doctors sometimes call the new tumor metastatic or distant disease.
Freebase(0.00 / 0 votes)Rate this definition: Rock Bottom. Rock Bottom is the second solo album by former Soft Machine drummer Robert Wyatt. It was released on 26 July 1974 by Virgin Records.
Vocabulary/Definitions. 1  cap rock: A very hard, impermeable rock that traps methane and oil under the ground. 2  core: A long, thin sample of rock taken from deep below the Earth's surface. 3  fossil fuel: Energy-rich substances that have formed from the Earth's long-buried plants and microorganisms.