I. noun 1. (in science fiction) a robot with a human appearance.[as modifier] • there were no android security guards to stop him.
2. ( Android) ( [ mass noun] —
‹trademark› an open-source operating system used for smartphones and tablet computers[as modifier]
• I have an Android phone and I like it a lot.
– origin early 18th cent.: from modern Latin androides, from andro- + -oid.