macrocephaly

1. For example, the monomer of the polyacrylamide has nerval toxicity and lead to macrocephaly, cancer and mutation, thus limit their application.
   聚丙烯酰胺絮凝剂的单体有神经毒性和致畸、致癌、致突变效应，使它们的应用受到很大限制。

noun

1. an abnormally large head

   Synonym:    megacephalymegalocephaly