How did Google got the product name "Android"?

Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets. Android's user interface is mainly based on direct manipulation, using touch gestures that loosely correspond to real-world actions, such as swiping, tapping and pinching, to manipulate on-screen objects, along with a virtual keyboard for text input.

Actually it wasn't google who came up with this name it was Andy Rubin and his three friends who developed this operating system initially for digital camera.

Google bought Android Inc. from them in 2005.

And real definition of android is that An Android is a robot which look and act like human, especially one with a flesh - like resemblance.

Android, Inc. was founded in Palo Alto, California in October 2003 by Andy Rubin (co-founder of Danger),Rich Miner (co-founder of Wildfire Communications, Inc.),Nick Sears (once VP at T-Mobile),and Chris White (headed design and interface development at WebTV to develop, in Rubin's words, "smarter mobile devices that are more aware of its owner's location and preferences"

In July 2005, Google acquired Android Inc. for at least $50 million, whose key employees, including Rubin, Miner and White, stayed at the company after the acquisition.Not much was known about Android Inc. at the time, but many assumed that Google was planning to enter the mobile phone market with this move.At Google, the team led by Rubin developed a mobile device platform powered by the Linux kernel. Google marketed the platform to handset makers and carriers on the promise of providing a flexible, upgradeable system. Google had lined up a series of hardware component and software partners and signaled to carriers that it was open to various degrees of cooperation on their part

The first commercially available smartphone running Android was the HTC Dream, released on October 22, 2008.

Source: quora, wikipedia