 To establish the use of the definiendum term is to specify the range of entities to which it is ordinarily applied. At least on one interpretation of Udayana, a definition does this by specifying the reason for which the relevant expression is applied (pravṛtti-nimitta), i.e., the application-conditions of that expression (Bhattacharyya 1990: 98–99; Granoff 1978: n. 74). Here, the application-conditions of an expression just consist in a property possessed by all and only referents of that expression. Take the definition of earth as that which possesses earthhood: this specifies the application-conditions of the expression ‘earth’ since people commonly apply the expression to things that possess earthhood. Using the definition, therefore, one can make an inference of the following sort, 