Sap is a thin, watery fluid inside plants that circulates food to the various parts of the plant. It is commonly used in the production of maple syrup.
A sap is also a small, blunt object used as a weapon, often constructed from a bag filled with loose, heavy objects such as lead shot or coins.
... start the gyroscope. Once the gyro is spinning, tipping the device will cause the gyroscope to start precessing, with its axis slipping around in the groove in ...