
Rind
Culinary Uses
The word 'rind' is often used in cooking to refer to the outer layer that might be grated or zested for flavor. 
Not Always Edible
'Rind' can describe a layer that is not meant to be eaten, such as on hard cheeses or certain melons. 
Thickness Varies
The thickness of a rind can differ greatly, from the thin skin of an apple to the thick rind of a winter squash. 