cry·o·gen 
(krīə-jən)
(krīə-jən)n.
A liquid, such as liquid nitrogen, that boils at a temperature below about 110 K (-160°C) and is used to obtain very low temperatures; a refrigerant.
- Indo-European root: gerə-
- Indo-European root: geus-
- Indo-European root: ghabh-
- Indo-European root: ghans-
- Indo-European root: ghebh-el-
- Indo-European root: ghedh-
- Indo-European root: ghei-
- Indo-European root: ghel-
- Indo-European root: ghel-
- Indo-European root: ghend-
- Indo-European root: gher-
- Indo-European root: gher-
- Indo-European root: gherə-
- Indo-European root: ghes-
- Indo-European root: gheslo-
- Indo-European root: gheu-
- Indo-European root: gheu(ə)-
- Indo-European root: ghos-ti-
- Indo-European root: ghrebh-
- Indo-European root: ghrebh-
- Indo-European root: ghredh-
- Indo-European root: ghrendh-
- Indo-European root: ghrē-
- Indo-European root: ghrēi-
- Indo-European root: ghwer-