from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various cacti of the genus Opuntia, especially the prickly pear.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Opuntia, a genus of cactus that includes such cacti as the prickly pear and xoconostle.
Latin (herba) Opūntia, Opuntian (herb), feminine of Opūntius, of Opus, an ancient town of east-central Greece, from Opūs, Opūnt-, Opus, from Greek Opous, Opount-.(American Heritage® Dictionary of the English Language, Fourth Edition)