1. mesocephalic - Noun
2. mesocephalic - Adjective
Of or pertaining to, or in the region of, the middle of the head; as, the mesocephalic flexure.
Having the cranial cavity of medium capacity; neither megacephalic nor microcephalic.
Having the ratio of the length to the breadth of the cranium a medium one; mesaticephalic.
Source: Webster's dictionary