The word "bulbous" is an adjective that describes something that is bulb-shaped or swollen in shape. It is often used to describe a rounded or protruding part of an object, such as a bulbous nose or a bulbous root. The term is commonly used in the context of biology and botany to describe a swollen part of a plant, such as a bulb or a tuber. In general, the word "bulbous" is used to describe something that has a rounded or swollen shape, and can be used to describe a wide range of objects, from architectural features to geological formations.