The term 'Potato Chip Feature' refers to two characteristics of potato chips: ridges and SALTINESS. The word 'RIDGE' is a five-letter word that describes the raised edges on the surface of a potato chip. SALTINESS is a nine-letter word that describes the salty flavor of potato chips. Potato chips are a popular snack food that are usually made from thinly sliced potatoes that are deep-fried or baked until they are crisp. They are often seasoned with salt, herbs, spices, or other flavorings.