noun cid·a·ris \ˈsidərə̇s\

Definition of cidaris

  1. 1 plural cidares \-ˌrēz\ [Latin, from Greek kidaris, probably of Semitic origin; akin to Hebrew kether crown] :  the royal tiara of the ancient Persian kings

  2. 2 capitalized [New Latin, from Latin] :  the type genus of Cidaridae

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.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Seen and Heard

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


a trip made at another's expense

Get Word of the Day daily email!