a system, popular esp. in the 19th cent., based on the assumption that an analysis of character can be made by a study of the shape and protuberances of the skull
Origin of phrenologyphreno- (sense ) + -logy
The study of the shape and protuberances of the skull, based on the now discredited belief that they reveal character and mental capacity.
- phren′o·log′ic phren′o·log′i·cal
From phreno- +"Ž -logy.