noun hip·pe·as·trum \ˌhipēˈastrəm\

Definition of hippeastrum

  1. 1 capitalized :  a genus of tropical American bulbous plants (family Amaryllidaceae) that are widely cultivated for their showy white to crimson flowers and that are sometimes included in the genus Amaryllis

  2. 2 plural -s :  any amaryllis of the genus Hippeastrum

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!

Origin and Etymology of hippeastrum

New Latin, from Greek hippeus horseman (from hippos) + astron star; from the equitant leaves and the star-shaped flowers — more at star

Seen and Heard

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


to help become familiar with something

Get Word of the Day daily email!