You searched for: “acrocephalosyndactylia
acrocephalosyndactylia (s) (noun), acrocephalosyndactylias (pl)
Craniostenosis characterized by acrocephaly and syndactyly (fusion of fingers and toes), probably occurring as an autosomal dominant trait and usually as a new mutation.

Acrocephalosyndactylia refers to the premature closure of "cranial sutures" resulting in malformation of the skull. The cranial sutures refer to a type of fibrous joint between the bones of the head.