the scientific study of the skulls of various human races
craniology详细解释
cra.ni.ol.o.gy n.（名词）The scientific study of the characteristics of the skull, such as size and shape, especially in human beings.头盖学：对头盖，尤其是对人类头盖的各个特征，如大小和形状的科学研究 【引伸】 cra.niolog.ical cra.niolog.ically adv.（副词）cra.niol.ogist n.（名词）
