1. Someone who practices physiognomy, a pseudoscience, based on the belief that the study and judgement of a person's outer appearance, primarily the face, reflects his/her character or personality.
2. Scientific correlation physiognomy, in which there are believed to be rough statistical correlations between physical features (especially facial features) and character traits due to a person's physical preferences that are caused by corresponding character traits; such that gene mixing causes the correlations; this type of physiognomy is therefore based on genetic determinism of character.