Horismos; or, Definition A Definition of Terms
Hor-is´-mos . Greek, ὁρισμός (horismos), a boundary, from ὁρίζω (horizo), to divide, mark out, settle, define . Hence, it is called DEFINITIO, definition .
It is the figure by which the meaning of terms is defined and fixed, briefly and precisely: the definition of terms, so important in all kinds of argumentation.