eolipile

noun

1. aeolipile.

noun

1. a round vessel caused to rotate by the force of tangentially escaping steam: an early example of jet propulsion.
2. a device for injecting the vapors of heated alcohol into a laboratory furnace.

noun

1. a variant spelling of aeolipile

noun

1. a device illustrating the reactive forces of a gas jet: usually a spherical vessel mounted so as to rotate and equipped with angled exit pipes from which steam within it escapes