Definition of pentas
1 capitalized : a genus of chiefly African herbs or subshrubs (family Rubiaceae) that are grown as ornamentals especially in mild regions or in greenhouses and have opposite leaves, tubular flowers with a hairy throat, and capsular fruit
2 plural pentas : any plant of the genus Pentas
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!
Origin and Etymology of pentas
New Latin, irregular from Greek pente five — more at five
Seen and Heard
What made you want to look up pentas? Please tell us where you read or heard it (including the quote, if possible).