popoki. 1. n. Lid, cover. ‖ taupoki. Taringa popoki, of a person with prominent projecting ears.
2. Knee-cap.
3. Caul, or some part of the placenta. Ka kawea te popoki ki mua, ka oti te kawe, ka hoki mai, ka kotia te pito (W. ii, 11).
4. Sacred food in connection with first-fruits, naming ceremonies, death, etc. Ko te popoki he kai tapu mo te tuatanga tamariki, mo te hahunga tupapaku hoki.
5. v.i. Lie with the concave surface downwards. E popoki ana hoki te riu o te waka ki raro.
6. a. Whirling, eddying. Kotahi mana korua e patu, ko nga hau o Te Ururangi, nga hau popoki o runga (Tr. vii, 44).
Williams Dictionary