noun[mass noun] ( trademark in the UK)
An operating system used for mobile devices manufactured by Apple Inc. [as modifier]: both the iPod touch and the iPad are iOS devices
More example sentences
- Having a solid understanding of the evolution of Mac OS and iOS will be a challenge.
- They are intended to be read only from the iBooks app on an iOS device.
- For my part, I like Apple's approach to the iOS platform.
Definition of iOS in:
- The US English dictionary