congeal point

The trail was so narrow that Jason, like many of the others, dismounted to lead his morope, in an attempt to warm himself above the congealing point by the exertion.

The desired properties of the petrolatum can be modified by using microcrystalline wax bases of different congeal points (ASTM test D938) and needle penetration (ASTM D1321).

But beyond this deadline, zero degrees Centigrade, or a little lower or higher, depending on the actual congealing point of the water in their bodies, even they cannot go, for there, the cold limit of Terrestro-Martian life has been reached.