cryostat

plural cryostats

1. A device used to maintain a constant low temperature.
   1. biologyA microtome held at a constant low temperature.

      1 more example

      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.

      2021 July 28, Barbara Casassus, “France issues moratorium on prion research after fatal brain disease strikes two lab workers”, in Science