co·eter·nal
| \ ˌkō-i-ˈtər-nᵊl
\
\
Definition of coeternal
: equally or jointly eternal
… the old 19th-century view that … if life and matter are coeternal, there is no problem of the origin of life to be figured out.— Carl Sagan
Learn More About coeternal
Statistics for coeternal
Look-up Popularity
Cite this Entry
“Coeternal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coeternal. Accessed 1 Jul. 2022.
Style: MLA
MLA
Chicago
APA
Merriam-Webster
Chicago
APA
Merriam-Webster
Test Your Vocabulary
Which Word Does Not Belong?
-
- Which of these words does not mean "nonsense"?
Test your vocabulary with our 10-question quiz!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
-
Brand Name Vocabulary Quiz
You’re gonna need some moxie to ace this quiz
Take the quiz
-
Commonly Confused Words Quiz
Take a (break/brake) and (pore/pour) over this (c...
Take the quiz
-
How Strong Is Your Vocabulary?
Test your vocabulary with our 10-question quiz!
Take the quiz
-
Spelling Bee Quiz
Can you outdo past winners of the National Spelli...
Take the quiz
Share coeternal
Time Traveler for coeternal
The first known use of coeternal was in the 14th century
See more words from the same century