Steam Power Terms

noun a device consisting of a hollow metal sphere mounted so that it can rotate about an axis parallel to the direction of the wind, with a tube through which steam is forced to emerge tangentially, used to illustrate the effects of rotation and fluid pressure

• The aeolipyle was used in ancient times as a device to demonstrate the power of steam.
• I found this cool aeolipyle at the antique shop.
• Check out this funky aeolipyle I scored at the flea market!
• The aeolipyle symbolizes the ingenuity and innovation of ancient civilizations.