岩石圈 Traditional form: 岩石圈 Pinyin (reading): yánshíquān Definitions: lithosphere (in geology, the rigid crust of the earth) Characters: 岩 - cliff; rocks; mountain 石 - stone, rock, mineral 圈 - circle, ring, loop; to encircle Traditional characters: 岩 - cliff; rocks; mountain 石 - stone, rock, mineral 圈 - circle, ring, loop; to encircle