Lucerne is a city in Switzerland, and it is also the name of a type of hay. The crossword solutions for the term Lucerne are ALFALFA (7 letters), MEDIC (5 letters), and FODDER (6 letters). ALFALFA is a type of hay that is high in protein and is often used as animal feed. MEDIC is a type of clover that is also used as animal feed. FODDER is a general term for food given to animals, and it can include hay, straw, and other types of feed.