Cactus (?), n. ; pl. E. Cactuses (#), Cacti (-tī). [L., a kind of cactus, Gr. &unr_;&unr_;&unr_;&unr_;&unr_;&unr_;.] (Bot.) 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.
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Cactus wren (Zoöl.), an American wren of the genus Campylorhynchus, of several species.
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