from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a steam engine powered by rocket propulsion due to escaping steam; which consists of a pressure vessel mounted on a bearing, with one or more tubes which exhaust steam tangentially to the rotation axis thus creating rotation.
from the GNU version of the Collaborative International Dictionary of English
- n. An apparatus consisting chiefly of a closed vessel (as a globe or cylinder) with one or more projecting bent tubes, through which steam is made to pass from the vessel, causing it to revolve.
from The Century Dictionary and Cyclopedia
- n. An instrument illustrating the expansive force of steam generated in a closed vessel, and escaping by a narrow aperture, said to have been invented by Hero of Alexandria in the second century b. c.
- n. A form of blast-lamp for use in chemical laboratories, in which an alcohol flame is deflected by a stream of alcohol vapor escaping from a jet, this vapor being produced from liquid alcohol in a little boiler over the original flame.
From French éolipyle, from Latin Aeoli pylae ("doorway of Aeolus"). (Wiktionary)