white dwarf

noun

Definition of white dwarf

plural white dwarfs
:a small hot whitish star of low intrinsic brightness usually with a mass approximately equal to that of the sun but with a density many times larger

First Known Use of white dwarf

1922


WHITE DWARF Defined for English Language Learners

white dwarf

noun

Definition of white dwarf for English Language Learners

  • astronomy : a star that is at the end of its life and is very hot, small, and dense


Seen and Heard

What made you want to look up white dwarf? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

of yeast or being unsettled or frivolous

Get Word of the Day daily email!

Test Your Vocabulary

Merriam-Webster's New Words Quiz—Fall 2017 Edition!

  • young-plant-shoots
  • Which of the following is a new sense of the word bunny?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!