idiograph: Meaning and Definition of

id•i•o•graph

Pronunciation: (id'ē-u-graf", -gräf"), [key]
— n.
  1. a mark or signature characteristic of a particular person, organization, etc.; trademark. Cf. logotype (def. 2).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.