A black dwarf is a theoretical astronomical object that is formed when a white dwarf star cools down to the point where it no longer emits any light or heat. It is considered to be the final stage in the life cycle of a star.
Definitions
A black dwarf is a star that has exhausted all of its fuel and has cooled to the point where it no longer emits any light or heat. It is essentially a dead star that has collapsed under its own weight, becoming a cold, dark, and lifeless object.
Origin
The concept of a black dwarf was first proposed by the British astronomer Arthur Eddington in the early 20th century. He predicted that white dwarf stars would eventually cool down and become black dwarfs, but this process would take trillions of years.
Meaning in different dictionaries
According to the Oxford English Dictionary, a black dwarf is “a hypothetical celestial object that is the final stage in the evolution of a white dwarf star, having cooled to a temperature at which it no longer emits significant radiation.”
The Merriam-Webster dictionary defines a black dwarf as “a celestial object that is the hypothetical final stage of the evolution of a white dwarf, having cooled to the point where it no longer emits significant radiation.”
Associations
Black dwarfs are associated with the end of the life cycle of a star. They are also associated with the concept of entropy, which is the tendency of all systems to move towards a state of disorder and chaos over time.
Synonyms
Synonyms for black dwarf include dark dwarf, cold dwarf, and dead star.
Antonyms
Antonyms for black dwarf include white dwarf, red giant, and main sequence star.
The same root words
The root words of black dwarf are “black,” which refers to the absence of light, and “dwarf,” which refers to a small and compact object.
Example Sentences
- The black dwarf is the final stage in the life cycle of a star.
- Scientists predict that it will take trillions of years for a white dwarf to cool down and become a black dwarf.
- The black dwarf is a cold, dark, and lifeless object that is no longer emitting any radiation.
- The concept of a black dwarf was first proposed by the British astronomer Arthur Eddington.
- Black dwarfs are associated with the end of the universe and the concept of entropy.