Word
plenum
US/ˈpɫɛnəm/
UK/plˈɛnəm/
Countable noun
Definition
n. a meeting where everyone in a group is present. It can also mean a space that is completely full of something, like air or gas.
n. a meeting of an entire body or assembly; also, a chamber or space filled with a fluid or gas. Often used in technical contexts to describe a volume of air or a full assembly of delegates.
Examples
“The committee will discuss the proposal in a plenum tomorrow.”
“After the breakout sessions, all the delegates gathered in the main hall for a plenum to vote on the final report.”
“The physicist explained that the experiment required a vacuum, as the presence of air in the plenum would interfere with the delicate measurements of the particle's trajectory.”
Examples
simple
“The committee will discuss the proposal in a plenum tomorrow.”
contextual
“After the breakout sessions, all the delegates gathered in the main hall for a plenum to vote on the final report.”
complex
“The physicist explained that the experiment required a vacuum, as the presence of air in the plenum would interfere with the delicate measurements of the particle's trajectory.”
Etymology
From Latin plēnum n (“space filled with matter”), from plēnus (“full”). The sense of "legislative meeting" is a semantic loan from Russian пле́нум (plénum, “plenary session”), from the same Latin source.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
NOUN
ADJECTIVE
Domains
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C2 ProficiencyIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.8.5–9.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 6.0114–120
- Frequency
- Occasional
- Level
- C2 · Proficiency
- Updated
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