post-transition metalWiktionary 原文英美构词拆解post-前缀+transition词干post-after; later. · (anatomy) behind.词源说明From post- + transition + metal; see transition metal.释义名词noun1(chemistry) A poor metal, usually including gallium, indium, tin, thallium, lead, and bismuth, also known as B-subgroup metals, other metals, and p-block metals.