Definition of free space in English:

free space

Line breaks: free space


[mass noun] Physics
  • Space unoccupied by matter or, more particularly, containing no electromagnetic or gravitational field and used as a reference.
    More example sentences
    • Photons in free space act almost exclusively as waves.
    • Radiation from free space is a negligible additional contribution so is not included.
    • So they're essentially sitting in free space inside a vacuum chamber.

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Pronunciation: ˈmālˌsträm
a powerful whirlpool in the sea