Eolipiles is a 9 letter English word. It's valid Scrabble word worth 10 points. It's valid Words with friends word worth 13 points.
You can make 202 anagrams from letters in eolipiles (eeiillops).
1650-60; Latin aeolīpilae balls of Aeolus, alteration of aeolīpylae gates of Aeolus, equivalent to Aeolī (genitive singular of Examples for eolipiles
This also was the invention of Hero, and was a reaction engine, on the principle of the eolipile.