# A B C D E F G H I J K L M N O P Q R S T U V W Y Z
Undershot Waterwheel
A form of WATERWHEEL, driven by the IMPULSE of water passing beneath and striking the lowest FLOATS. Of use where the fall of water is insufficient to turn an OVERSHOT or BREAST WHEEL. Explore other types of waterwheel in our Thematic Glossary.