barrel cactus /(băr"rĕl kăk"tŭs)/

bar·rel cac·tus

barrel cactus

n.

pl. barrel cacti ((băr"rĕl kăk"tī))

  1. any of several large cacti native to the southwestern U. S. and Mexico, having a short cylindrical form with deep vertical ribs and bearing sharp spines. They are classed in the genera Ferocactus and Echinocactus.