self-pollination
noun [ U ] biology specialized uk/ˌself.pɒl.əˈneɪ.ʃən/ us/ˌself.pɑː.ləˈneɪ.ʃən/
自花授粉
the process by which pollen from the male part of a flower is carried to the female part of the same flower or to another flower of the same type