Cepheid

noun
Ce·​phe·​id | \ ˈse-f(ē-)id How to pronounce Cepheid (audio) , ˈsē- How to pronounce Cepheid (audio) \

Definition of Cepheid

: any of a class of variable stars whose very regular light variations are related directly to their intrinsic luminosities and whose apparent luminosities are used to estimate distances in astronomy

First Known Use of Cepheid

circa 1903, in the meaning defined above

History and Etymology for Cepheid

International Scientific Vocabulary, from Cepheus

Keep scrolling for more

Learn More About Cepheid

Time Traveler for Cepheid

Time Traveler

The first known use of Cepheid was circa 1903

See more words from the same year

Dictionary Entries Near Cepheid

cepharanthine

Cepheid

Cephenemyia

See More Nearby Entries 

Statistics for Cepheid

Cite this Entry

“Cepheid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Cepheid. Accessed 23 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon
Seen & Heard
People are talking about

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Spell It

Can you spell these 10 commonly misspelled words?

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!