Gyrostats are objects that have a significant degree of rotational symmetry. These objects can be found in various fields such as physics, engineering, and mathematics. If you want to use a different term to describe a gyrostat, some synonyms are rotational symmetry objects, rotationally symmetrical bodies, or rotating bodies. You can also use the word gyroscopic device, which pertains to an instrument that measures angular momentum or rotation. Additionally, you can use the term flywheel, which is a heavy wheel that stores kinetic energy in various mechanical systems, including gyroscope and gyrostat. By using these synonyms, you can expand your vocabulary and effectively communicate your message.