masticatory UK /ˌmasˈtɪk.eɪ.tər.i/US /mæˈstɪk.əˌtɔr.i/adjective 2noun 1forms 1 adjective2 •Of, or relating to mastication. •Used for chewing. noun1 •Something chewed, originally as a medicine, now typically for pleasure or to increase the flow of saliva.Sneezing, masticatories, and nasals are generally received. — 1624 formsmasticatories