acrocephaly

n. malformation resulting in a slightly pointed skull (Pathology)

Apert Syndrome, virtually synonymous with Acrocephalosyndactyly, is a branchial arch syndrome, resulting from a developmental anomaly. Specifically, this syndrome affects the first branchial (or pharyngeal) arch, which is the precursor of the maxilla and mandible. Since the branchial arches are important developmental features in a growing embryo, disturbances in its development create lasting and widespread effects.
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Acrocephaly /ac·ro·ceph·a·ly/ oxycephaly. ac·ro·ceph·a·ly or ac·ro·ce·pha·li·a n. See oxycephaly. ac ro·ce·phal ic adj. acrocephaly see oxycephaly. [more]Acrocephaly - Community and Resources

Noun
1. a congenital abnormality of the skull; the top of the skull assumes a cone shape
(synonym) oxycephaly
(hypernym) birth defect, congenital anomaly, congenital defect, congenital disorder, congenital abnormality

(n.)
Loftiness of skull.