| Answer | Crossword Clue |
|---|---|
| BITTERLYCOLD | Very low-temperature |
| cryostats | An apparatus for maintaining a very low temperature |
| cryostat | apparatus, usually automatic, maintaining a very low constant temperature |
| freeze | Store (something) at a very low temperature in order to preserve it |
| freezes | Store (something) at a very low temperature in order to preserve it |
| thermonuclear | of, relating to, or employing transformations in the nuclei of atoms of low atomic weight (as hydrogen) that require a very high temperature for their inception (as in the hydrogen bomb or in the sun) |
