IPA: /kraɪəˈdʒɛnɪkli/
KK: /kraɪəˈdʒɛnɪkli/
In a manner that involves very low temperatures, close to absolute zero.
The samples were preserved cryogenically to maintain their integrity.
Cryogenically → It is formed from "cryo-" (from Greek "kryos", meaning cold or frost) and "-genic" (from Greek "genes", meaning born of or produced by). The word "cryogenically" refers to processes or conditions that are produced by or related to extremely low temperatures.
Think of 'cold' ('cryo-') and 'produced by' ('-genic') to remember that cryogenically relates to processes involving very low temperatures.