noun Pi·so·nia \pə̇ˈsōnēə, pīˈs-\

Definition of Pisonia

  1. :  a genus of tropical often thorny trees, shrubs, and vines (family Nyctaginaceae) having small dioecious apetalous flowers and utricular fruits — see cockspur 2b

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 pisonia

New Latin, irregular from Willem Piso †about 1678 Dutch physician and traveler + New Latin -ia

Seen and Heard

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


to criticize severely

Get Word of the Day daily email!