physiognomy:
- the art of discovering temperament and other characteristic qualities of the mind from the outward appearance, especially by the features of the face
- the face or facial features, especially when regarded as indicating character
- the general appearance or aspect of a thing
Example: Pasteur seems to have been most interested in capturing the actual looks of his subjects, and his portraits form a gallery showing all kinds of physiognomies that are observed with almost clinical patience. [
Reference: Patrice Debré, Louis Pasteur (translated by Elborg Forster)]