sagitta

noun sa·git·ta \səˈjitə\

Definition of sagitta

  1. 1 plural -s :  the distance from the midpoint of an arc to the midpoint of its chord

  2. 2 -s :  the larger of the two large otoliths found in the ear of most fishes

  3. 3a Sagitta :  a genus of planktonic marine animals (phylum Chaetognatha) including the largest arrow worms b plural sagittas \-təz\ or sagittae \-tˌē\ :  any arrowworm of the genus Sagitta

There's more!

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!
Already a subscriber? Log in.

Origin and Etymology of sagitta

New Latin, from Latin, arrow, probably of non-Indo-European origin


Sagitta

play
noun Sa·git·ta \sə-ˈji-tə\

Definition of Sagitta

astronomy

  1. :  a small northern constellation that is visible between the constellations of Aquila and Vulpecula and that is represented by the figure of an arrow Sagitta is an interesting constellation to see in the early evening. It's a small compact group in a beautiful field of double stars. In mythology, Sagitta represents an arrow shot by the hero Hercules. — Arnold Pearlstein, Sun-Sentinel (Fort Lauderdale, Florida), 21 Aug. 1994

There's more!

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!
Already a subscriber? Log in.

First Known Use of sagitta

1675


Seen and Heard

What made you want to look up sagitta? 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

the weight of a container

Get Word of the Day daily email!

Test Your Vocabulary

The Emoji Quiz

  • emoji-the-quiz
  • What phase of the moon is this: 🌖 ?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

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!