microcephalus

Từ điển WordNet v3.1 - WordNet Dictionary

noun

an abnormally small head and underdeveloped brain
• Syn:
microcephaly, nanocephaly
• Derivationally related forms:
nanocephalic (for: nanocephaly), microcephalic (for: microcephaly), microcephalous (for: microcephaly)
• Hypernyms:
abnormality, abnormalcy