Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Achaeta

Achae·​ta | \ (ˈ)ā-ˈkē-tə\

Definition of Achaeta

 (Entry 1 of 2)

taxonomic synonym of sipunculoidea 2

Achaeta

noun
Achae·​ta | \ (ˈ)ā-ˈkē-tə\

Definition of Achaeta (Entry 2 of 2)

: a genus of oligochaete worms completely lacking setae

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 Achaeta

Noun

1885, in the meaning defined above

History and Etymology for Achaeta

New Latin, from a- entry 2 + -chaeta

Noun

New Latin, from a- entry 2 + -chaeta

Keep scrolling for more

Learn More about Achaeta

Statistics for Achaeta

Look-up Popularity

Time Traveler for Achaeta

The first known use of Achaeta was in 1885

See more words from the same year

Comments on Achaeta

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

Show Comments  Hide Comments 

WORD OF THE DAY

remittance

Listen to the pronounciation of remittance

a sum of money that is sent as a payment

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time traveler quiz which word came first
  • Which came first?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Dictionary Devil

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!

Words at Play
Ask the Editors
Word Games