Selenium course online
The Selenium term “fluent wait” refers to the longest period of time Selenium WebDriver will wait before a condition (web element) is met. Additionally, it specifies how many of the “ElementNotVisibleException” will be thrown by WebDriver before checking to see if the criteria are met.
Simply put, Fluent Wait continuously searches for a web element until a timeout occurs or the object is located. A good Selenium course online will explain the concepts of Fluent waits.