cryostat

noun

1. A device used to maintain a constant low temperature.
2. A device used to maintain a constant low temperature.

   “For Jaumain[…]that long period of uncertainty began on 31 May 2010, when she stabbed her left thumb with a curved forceps while cleaning a cryostat—a machine that can cut tissues at very low temperatures—that she used to slice brain sections from transgenic mice infected with a sheep-adapted form of BSE.”