Definition of "cryostat" []

• An apparatus used to maintain constant low temperature. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "This is accomplished by packing it in a cryostat, which is basically a large thermos filled with solid hydrogen."
• "The stainless steel quarto plates, made out of low cobalt 304, will be used in the cylindrical section of the cryostat, which is the hull surrounding the main components of the Tokamak reactor."
• "A bottle-like chamber, called a cryostat, surrounds and cools the telescope and detectors."