testaceousa. 具介殼的、介殼質的、赤褐色的有殼的、有介殼的、有甲殼的學術名詞被硬殼的：動物學1.有外殼的：植物學2.紅磚色：植物學褐黃色：植物學英文釋義relating to or possessing a testa or hard shell