Definition of epicranium in US English:

epicranium

noun

  • 1Anatomy. The tissue that covers the top of the skull; specifically the occipitofrontal muscle or its tendinous expansion (galea).

  • 2Entomology. In insects: the upper surface of the head.

Origin

Early 17th century (in an earlier sense). From epi- + cranium.

Pronunciation

epicranium

/ˌɛpɪˈkreɪnɪəm/