Meaning of thermostable

ther•mo•sta•ble

Pronunciation: (thûr"mō-stā'bul), [key]
— adj. Biochem.
  1. capable of being subjected to a moderate degree of heat without loss of characteristic properties, as certain toxins and enzymes (opposed to thermolabile).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.