What word describes the gradual freezing of tissue with minimal damage?

The term that describes the gradual freezing of tissue with minimal damage is "frostnip." This condition occurs when skin, usually on the extremities such as fingers or toes, is exposed to cold temperatures for a prolonged period but does not develop serious tissue injury. Frostnip is characterized by symptoms such as redness, numbness, and a tingling sensation. Unlike frostbite, which involves deeper tissue freezing and significant damage, frostnip represents a milder and reversible form of cold injury, allowing the affected area to heal once warmed.

The other terms relate to different concepts. Hyperemia refers to an increased blood flow to a particular area and is not linked to cold injuries. Coagulation is the process by which blood changes from a liquid to a gel or semi-solid state; while it can be involved in tissue response, it doesn’t specifically denote freezing. Stasis indicates a slowing or stoppage of the normal flow of a liquid, typically applied to blood or other fluids in different contexts, thus not relevant here.