Serpens

noun
Ser·​pens | \ ˈsər-ˌpenz How to pronounce Serpens (audio) \

Definition of Serpens

astronomy
: a northern constellation that is visible in two parts on either side of the constellation Ophiuchus and that is represented by the figure of a serpent in the grasp of a man represented by Ophiuchus

Note: The constellation Serpens is divided into two separate sections, called Serpens Caput (the “head of the serpent”) and Serpens Cauda (the “tail of the serpent”).

The main object of interest in Serpens Caput is the globular cluster M5, down in the south of the region, near the border with Virgo. — Adrian Berry, Daily Telegraph (London), 1 June 2009 Their latest discovery is a double star in the planetary nebula cataloged as Abell 41, located in the constellation Serpens Cauda. These stars orbit each other in only 2 hours and 43 minutes, indicating that they are extremely close together.— D. E. Thomsen, Science News, 16 Apr. 1983

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 Serpens

1715, in the meaning defined above

Learn More About Serpens

Time Traveler for Serpens

Time Traveler

The first known use of Serpens was in 1715

See more words from the same year

Dictionary Entries Near Serpens

serozyme

Serpens

serpent

See More Nearby Entries 

Statistics for Serpens

Cite this Entry

“Serpens.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Serpens. Accessed 25 Jan. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

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!