Ko e tenga-efuefu (lea fakapilitānia: spore) ko e meʻa fakafanau ʻa e ngaahi ʻakau ʻoku ʻilo ko e ʻakau tengaefuefu. ʻOku kehe mei he ʻakau tengaʻiʻakau, ʻoku ne ngāueʻaki mo e ʻū tenga.