ultravacuum
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English[edit]
Etymology[edit]
Noun[edit]
ultravacuum (plural ultravacuums or ultravacua)
- A near-perfect vacuum; i.e. an almost or fully complete absence of matter, especially a gas at very low pressure.
References[edit]
- “ultravacuum”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
- “ultravacuum” in TheFreeDictionary.com, Huntingdon Valley, Pa.: Farlex, Inc., 2003–2024.