masticatory
1. mas.ti.ca.to.ry \'mas-ti-k*-.to-r-e-, -.to.r-\ aj 1: used for or adapted
to chewing {~ limbs of an arthropod} 2: of, relating to, or involving the
organs of mastication {~ para lysis}
2. masticatory n : a substance chewed to increase saliva
Webster's English Dictionary