Goniaster

noun
Go·​ni·​as·​ter | \ ¦gōnē¦astə(r)\

Definition of Goniaster

: a common genus (the type of the family Goniasteridae) of cushion stars consisting of nearly pentagonal, rigid, and often brightly colored starfishes

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!

History and Etymology for Goniaster

New Latin, from goni- + -aster

Keep scrolling for more

Learn More about Goniaster

Dictionary Entries near Goniaster

Gongorism

Gongylonema

goni-

Goniaster

goniatite

Goniatites

Goniaulax

Statistics for Goniaster

Look-up Popularity

Comments on Goniaster

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

WORD OF THE DAY

tremendous in size, volume, or degree

Get Word of the Day daily email!

Test Your Vocabulary

Homophone Quiz

  • three-bears-two-of-them-look-like-theyre-whispering-to-a-third-bear-who-looks-chuffed-to-be-the-center-of-attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

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!