Maikuku, n. 1. Nail of a finger or toe. E kowhakina ana tona maikuku hei ahi (T. 24). Kei te maikuku pango nei te rahi (P.). (For anything very small.)
2. Claw, hoof. Maikuku karewarewa, a shellfish. Maikuku moa and maikuku o Tawhaki, ferns.
Williams Dictionary