cliff dweller: a member of the Anasazi people living in the southwestern United States who built rock or adobe dwellings on ledges in the sides of caves
anasazi: a Native American who lived in what is now southern Colorado and Utah and northern Arizona and New Mexico and who built cliff dwellings
baryon: any of the elementary particles having a mass equal to or greater than that of a proton and that participate in strong interactions; a hadron with a baryon number of +1