Definition of Proxima Centauri in US English:

Proxima Centauri

proper noun

Astronomy
  • A faint red dwarf star associated with the bright binary star Alpha Centauri. It is the closest known star to the solar system (distance 4.24 light years).

Origin

Latin, ‘nearest (star) of Centaurus’.

Pronunciation

Proxima Centauri

/ˌpräksəmə ˌsenˈtôrē/