English
hohlraum
Hohlraum comes from German Hohlraum ‘hollow area’.
- Germanc. 1650–presentHohlraum‘hollow area’
- Englishtodayhohlraum
attested reconstructed ? uncertain or disputed
Lineage
- Germanc. 1650–presentHohlraum‘hollow area’
- Englishtodayhohlraum
Every English word from German Hohlraum
Today it means
noun A cavity whose walls are in thermodynamic equilibrium with the radiation emitted by the cavity
Language periods are conventional ranges, not dates for this word.
Etymograph / German Hohlraum / hohlraum