Definition of red dwarf in US English:
red dwarf
nounˈˌred ˈdwôrfˈˌrɛd ˈdwɔrf
Astronomy A small, old, relatively cool star.
Example sentencesExamples
- In some respects, searching for planets around red dwarfs is harder than around heavier, hotter stars.
- This list is being added to as astronomers discover new red dwarfs and other small stars - which are still many times bigger than Jupiter and may possess planets.
- Despite the fact that red dwarfs are relatively cool, the small orbit means that temperatures on this world are extra toasty - several hundred degrees Celsius.
- It was hoped that this dark matter would be mostly in the form of small stars called red dwarfs.
- The newfound planet's host star is a red dwarf with about one-fifth the mass of our sun.