noun
Canadian Shield; Laurentian Shield; Laurentian Plateau
Geological term for the large exposed Precambrian igneous and metamorphic rock area in eastern and central Canada.
カナダ楯状地は、北アメリカ大陸の安定した核をなす広大な地質区である。
The Canadian Shield is a vast geological province that forms the stable core of the North American continent.
From カナダ (Canada) + 楯状地 (shield, literally 'shield-shaped land').