stabilizer

noun
1
a device that keeps something steady, especially one that stops an aircraft or a ship from rolling to one side
تثبیت‌کننده, پایدارکننده, متعادل‌کننده
2
small wheels that are fitted at each side of the back wheel on a child’s bicycle to stop it from falling over
چرخ کمکی, چرخ‌های کمکی, چرخ‌های جانبی
She can ride her bike without stabilizers now.
3
a chemical that is sometimes added to food or paint to stop the various substances in it from becoming separate
پایدارکننده, تثبیت‌کننده, عامل تثبیت‌کننده, ماده پایدارکننده