third in order or level

the tertiary stage of the disease

relating to or denoting the first period of the Cenozoic era, between the Cretaceous and Quaternary periods, and comprising the Palaeogene and Neogene sub-periods

(of an organic compound) having its functional group located on a carbon atom which is itself bonded to three other carbon atoms

denoting or relating to carnivores that eat other carnivores and omnivores

the tertiary consumers must hunt for their food

the Tertiary period or the system of rocks deposited during it

a lay associate of certain Christian monastic organizations

a Franciscan tertiary