(adj) :
having a subject and object that are the same; of a relation R on a set S, such that xRx for all members x of S (that is, the relation holds between any element of the set and itself)
(adj) :
having a subject and object that are the same; of a relation R on a set S, such that xRx for all members x of S (that is, the relation holds between any element of the set and itself)