cryogenics
Word family adjectivecryobiologicalcryogeniccryometriccryoniccryophiliccryoscopicnouncryobiologistcryobiologycryoconitecryogencryogenicscryogenycryoglobulincryolitecryometercryonicscryophoruscryophysicscryoprecipitatecryopreservationcryoprobecryoscopecryoscopycryostatcryosurgeoncryosurgerycryotherapycryotronverbcryopreserve
cry·o·gen·ics /ˌkraɪəˈdʒenɪks/ noun [uncountableU] —cryogenic adjectiveadj
Origin cryogenics (1900-2000) cryogen “substance producing low temperatures” ((19-21 centuries)), from Greek kryo- (from kryos “very cold”) + English -gen “producing” (from Greek -genes “born”)