Meaning of free space in English:

free space


mass nounPhysics
  • Space unoccupied by matter or, more particularly, containing no electromagnetic or gravitational field and used as a reference.

    ‘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.’
    space, free space