Yes. Coconut is a drupe fruit.
Drupe fruit
- A drupe is a fleshy fruit that usually has only one seed.
- It means that a drupe is any fruit that grows from a single ovary of a single flower, with the outer layer of the ovary transforming into the fruit's skin or peel and the middle layer transforming into the fleshy fruit. The hard inner layer, known as the putamen or pit, protects the single seed within.
- They have a fibrous mesocarp, a membranous epicarp, and a stony endocarp. Endosperm is the edible part of a coconut, and coconut water is endosperm. With the liquid – coconut water – the endocarp wraps one seed with brown protective coat containing a small embryo and an edible part (white oily endosperm).