sindexsporopollenin./spawr-uh-pol-uh-nin/US // ˌspɔr əˈpɒl ə nɪn //孢子花素,孢子素,孢子花蛋白,孢子花粉素Definitionsn.noun · 名词1.›an inert, tough polymer forming the resistant outer coat of a pollen grain or spore.Level 4More words in s →