Definition of Dioön
: a genus of plants (family Cycadaceae) having a somewhat conical trunk crowned by a large tuft of pinnate leaves with spine-tipped pinnae
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 dioön
New Latin, from di- + -oön (from Greek ōion egg) — more at egg
Seen and Heard
What made you want to look up Dioön? Please tell us where you read or heard it (including the quote, if possible).