Æ*ol"i*pile, Æ*ol"i*pyle (#), n. [L. aeolipilae; Aeolus god of the winds + pila a ball, or Gr. gate (i. e., doorway of Æolus); cf. F. éolipyle.]

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.

[Written also eolipile.]

⇒ Such an apparatus was first described by Hero of Alexandria about 200 years b. c. It has often been called the first steam engine.

 

© Webster 1913.

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