megacephaly megacephalic • megacerine · · · Info · Definitions · Synonyms · Characters · · megacephaly · · Text Latin · · Script 11 · · Length 5 · · Syllables Definitions · · · (noun) an abnormally large head; differs from hydrocephalus because there is no increased intracranial pressure and the overgrowth is symmetrical. Synonyms: macrocephaly, megalocephaly. · · Noun Definition 1 Synonyms · · · macrocephaly · · Synonym 1 megalocephaly · · Synonym 2 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 g latin small letter g U+0067 h latin small letter h U+0068 l latin small letter l U+006C m latin small letter m U+006D p latin small letter p U+0070 y latin small letter y U+0079