The act or process of passing, or causing to pass, from a fluid to a solid state, as by the abstraction of heat; the act or process of freezing. / The state of being congealed. / That which is congealed.

plural of congelation

That which tends to congeal.

(geology) A fragment of rock broken off by the action of frost

(geology) gelifraction

the weathering of material through the repeated freezing and thawing of water.

plural of congelifract