Cactus plants of many different varieties.Licensed from iStockPhoto
Origin: Modern Latin ; from Classical Greek kaktos, kind of thistle, cardoon
Used by arrangement with John Wiley & Sons, Inc.
noun pl. cac·ti or cac·tus·es
- Any of various succulent, spiny, usually leafless plants native mostly to arid regions of the New World, having variously colored, often showy flowers with numerous stamens and petals.
- Any of several similar plants.
Origin: Latin, cardoon, from Greek kaktos.