Which term refers to a color pattern where the fur is missing in spots?

The term that describes a color pattern where the fur is missing in spots is referred to as a "broken coat." This term is commonly used in cavy and other animal breeds to indicate a pattern that features patches of missing fur, which can create an aesthetically interesting appearance. A broken coat is characterized by these distinct areas of color variation, which are often intentional in the breeding of certain breeds to achieve specific show qualities or unique visual traits.

The other terms listed do not refer to this specific pattern. For instance, barbering is a behavior where animals chew or pull out their own or others’ fur, leading to hairless patches that are not a genetic trait. Banding typically refers to a specific pattern of color in fur where bands or stripes of color can be seen, but it does not involve missing patches of fur. Cataract is a medical term related to eye condition and does not pertain to fur or color patterns at all. Thus, "broken coat" is rightfully the correct term for the described fur pattern.