The fleshy edible part of the apple fruit is the thalamus. Apple (Malus domestic) fruit is a pome or false fruit. The outer fleshy edible part of the apple is the receptacle or thalamus. Pome type of fruit is mainly produced by flowering plants belonging to the family Rosaceae.
The pome is an accessory fruit that contains one or more carpels and is surrounded by accessory tissue (the receptacle or the thalamus). The skin of the fruit is called the epicarp, the flesh of the fruit is called the mesocarp and the core of the fruit is called the endocarp.