/ˈglo͞otēəl/
Adjective
1. Of or pertaining to the buttocks. (wiktionary.org)
2. Pertaining to, or in the region of, the gluteus. (biology-online.org)
/ˈglo͞otēəl/
Noun, pl. gluteals
1. A gluteus muscle in the buttocks. (Google Dictionary)
Word origin: From Modern Latin glutaeus, from Greek gloutos “the rump,” in plural, “the buttocks” + -al, “of, like, related to,”