cytoproct（胞肛）是什么意思？音标发音+图解场景

胞肛 /ˈsaɪtəfˌɑːɹɪŋks/ n

English: cytoproct · 胞肛

释义：Orifice corresponding to the anus; the food vacuole opens into it, allowing waste to be eliminated.

这个词出现在以下图解场景（1）