The word “cuticula” refers to a thin, protective outer layer or membrane. In a biological context, it often describes the cuticle of plants, which is a waxy layer that covers the outer surface of leaves and stems, helping to reduce water loss and protect against environmental factors. In humans, the term can also refer to the cuticle of the nails, which is the layer of skin at the base of the nail that protects the area from infection.
