Bean sprouts are a type of vegetable that is made from the germination of mung beans. The term 'bean sprout' can also refer to the sprouting of other types of beans. The crossword solutions for the term 'bean sprout' are EAR (3 letters) and IDEA (4 letters). EAR is likely referring to the shape of the bean sprout, which is similar to an EAR, while IDEA could be referring to the fact that bean sprouts are often used in Asian cuisine as a garnish or side dish.