1.The situation of misery by having a pointed skull: Raymond thought that people with cone-shaped heads must be in a state of acrocephaly, and have a hard time of being accepted by others.
2. The form of the human skull which shows a congenital abnormality in which the top part takes on a cone shape: When little Stella drew a picture of a girl, she drew the head having a contour of an acrocephaly, having the lower part much broader than the top.