Ophiuchus

noun
Ophi·​u·​chus | \ ˌä-fē-ˈyü-kəs How to pronounce Ophiuchus (audio) , ˌō- \

Definition of Ophiuchus

astronomy
: a large northern constellation that is visible between the constellations of Scutum and Hercules and that is represented by the figure of a man grasping a snake (the constellation Serpens) Thomas Greene of the University of Hawaii and Charles Lada of the Smithsonian Astrophysical Observatory have studied five protostars in Ophiuchus, each about 100,000 years old.Astronomy, September 1997

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of Ophiuchus

1556, in the meaning defined above

Keep scrolling for more

Learn More about Ophiuchus

Time Traveler for Ophiuchus

Time Traveler

The first known use of Ophiuchus was in 1556

See more words from the same year

Statistics for Ophiuchus

Cite this Entry

“Ophiuchus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Ophiuchus. Accessed 25 Feb. 2020.

Comments on Ophiuchus

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

WORD OF THE DAY

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

More Confusing Words—Quiz

  • cats on impossible timber
  • The magician ______ moved the selected card to the top of the deck.
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

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!