nanocephaly nanocephalus • nanogram · · · Info · Definitions · Synonyms · Characters · · nanocephaly · · Text Latin · · Script 11 · · Length 5 · · Syllables Definitions · · · (noun) an abnormally small head and underdeveloped brain. Synonyms: microcephaly, microcephalus. · · Noun Definition 1 Synonyms · · · microcephaly · · Synonym 1 microcephalus · · Synonym 2 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 y latin small letter y U+0079