infrigidation vs preservation

infrigidation and preservation both are nouns.

Word	Noun	Adjective	Verb	Adverb
infrigidation	Yes	No	No	No
preservation	Yes	No	No	No

As nouns, preservation is a hypernym of infrigidation; that is, preservation is a word with a broader meaning than infrigidation:

infrigidation: the process of cooling or freezing (e.g., food) for preservative purposes
preservation: a process that saves organic substances from decay

Other hypernyms of infrigidation include chilling, cooling, temperature reduction.

infrigidation (noun)	preservation (noun)
the process of cooling or freezing (e.g., food) for preservative purposes	the activity of protecting something from loss or danger
	an occurrence of improvement by virtue of preventing loss or injury or other change
	a process that saves organic substances from decay
	the condition of being (well or ill) preserved