noun. Any of numerous succulent, spiny, usually leafless plants of the family Cactaceae, native chiefly to arid regions of the Americas, having variously colored, often showy flowers with numerous stamens and petals.

noun. Any of several similar plants.

noun. The old and Linnean name for the group of plants, considered a single genus, which now form the order Cactaceæ.

noun. Any plant of the order Cactacæ, as the prickly pear and the night-blooming cereus. See cereus. They usually have leafless stems and branches, often beset with clustered thorns, and are mostly natives of the warmer parts of America.

noun. an American wren of the genus Campylorhynchus, of several species.

noun. Any member of the family Cactaceae, a family of flowering New World succulent plants suited to a hot, semi-desert climate.

noun. Any succulent plant with a thick fleshy stem bearing spines but no leaves, including euphorbs.

adjective. Non-functional, broken, exhausted.

noun. any succulent plant of the family Cactaceae native chiefly to arid regions of the New World and usually having spines

"This brain cactus is another of the plant species found in the botanical gardens in Phoenix, one of the most peaceful environments that I know."