Wiktionary
sociogram
n. a graphic representation of the structure of interpersonal relations in a group situation, a depiction of the social links that a person has
Wikipedia
Sociogram
A sociogram is a graphic representation of social links that a person has. It is a graph drawing that plots the structure of interpersonal relations in a group situation.
Usage examples of "sociogram".
People borrowed from one another in a complex sociogram of debt, and the elaboration of the payback schemes was often strained.