Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

iridaceous

adjective
iri·​da·​ceous

Definition of iridaceous

1 : of or relating to the family Iridaceae or especially the genus Iris
2 : resembling an iris silvery blue iridaceous flowers

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 iridaceous

New Latin Iridaceae + English -ous

Keep scrolling for more

Learn More about iridaceous

Dictionary Entries near iridaceous

irid

irid-

Iridaceae

iridaceous

iridectomize

iridesce

iridescence

Statistics for iridaceous

Look-up Popularity

Comments on iridaceous

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

Show Comments  Hide Comments 

WORD OF THE DAY

belfry

Listen to the pronounciation of belfry

a bell tower

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

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!

Words at Play
Ask the Editors
Word Games