The term 'Seedy Loaf' refers to a type of bread made with RYE flour, which is a type of grain that is commonly used in baking. The crossword solution for this term is 'RYE', which is a three-letter word. RYE flour is known for its nutty flavor and is often used in making sourdough breads. Seedy Loaf is a popular type of bread that is made with RYE flour and is usually topped with seeds such as sesame, poppy, or sunflower.