Definition - What does Android Lollipop mean?
Android Lollipop is a version of the Android operating system developed by Google and introduced in June 2014. Software version numbers for Lollipop range from 5.0 to 5.1.1. Lollipop was preceded by Android KitKat and followed by Android M.
Techopedia explains Android Lollipop
Successive versions of Android operating systems have evolved with more attention to versatile design and modern security and convenience features. The design and functionality of Lollipop was significantly overhauled from previous versions of Android. Android Lollipop featured a new notification system, a redesigned apps menu, more APIs, better design for power consumption, and various enterprise tools.
Launch devices for Android Lollipop included the Nexus 6 smartphone and HTC's Nexus 9 tablet.