Noun
One who chooses; one who has the power or right of choosing; an elector.
Source: Webster's dictionaryEach time that you don't know you are choosing, then of those choices you are not the chooser. Guy Finley
Column chooser UI can be selectively enabled to let end users interactively choose the visible columns. Source: Internet
The NBP lists were examined and displayed by a program known as the Chooser which would display a list of machines on the local network, divided into classes such as file-servers and printers. Source: Internet
If an implicit intent can launch at least two possible apps on a user's device, explicitly show an app chooser. Source: Internet
Suppose the user activates the open file // chooser and selects the file to which the image was saved. Source: Internet