early 15c., from Late Latin infrigidationem (nominative infrigidatio), noun of action from infrigidare "to make cold," from in- "in, into" (see in- (2)) + frigidare, from frigidus "cold" (see frigid). Related: infrigidate (v.).
英英释意
1. the process of cooling or freezing (e.g., food) for preservative purposes
