Spinning pinwheel

Spinning Wait Cursor as seen in OS X El Capitan

The spinning wait cursor is a variation of the mouse pointer arrow, used in Apple's OS X to indicate that an application is busy.

The icon is also commonly referred to as the spinning beach ball and the spinning wheel of death. Officially, the OS X Human Interface Guidelines refers to it as the spinning wait cursor, but it is also known by many other names.

单词	Wait cursor
释义	Wait cursor 英语百科 Spinning pinwheel The spinning wait cursor is a variation of the mouse pointer arrow, used in Apple's OS X to indicate that an application is busy. The icon is also commonly referred to as the spinning beach ball and the spinning wheel of death. Officially, the OS X Human Interface Guidelines refers to it as the spinning wait cursor, but it is also known by many other names.
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Wait cursor

Spinning pinwheel