no·pal 
(nō-päl, nōpəl)
(nō-päl, nōpəl)n. pl. no·pal·es (-pälĕs) also no·pals (-pəlz)
1. Any of various cacti having edible stems, especially the prickly pears.
2. The fleshy, oval, edible pad of such a cactus.
[American Spanish, from Nahuatl nohpalli.]
nopal