Tea-ball is a tool used for brewing loose leaf tea. However, there are several synonyms for this word used by different people around the world. Tea infuser is a common alternative term used for a tea-ball. Other commonly used terms include tea ball with a chain, stainless steel tea ball, and mesh ball strainer. Some people refer to them as tea spheres, tea eases, and tea pod. Another term used for this tool is a tea egg, which looks like a bird's nest in shape. Whatever you call it, a tea-ball is a handy tool for preparing loose tea in a cup or a teapot.