Defn: Æolian, 1; as, the Æolic dialect; the Æolic mode.

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

Defn: 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.]

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

AEOLOTROPIC
Æ`o*lo*trop"ic, a. Etym: [Gr. (Physics)

Defn: Exhibiting differences of quality or property in different directions; not isotropic. Sir W. Thomson.

AEOLOTROPY
Æ`o*lot"ro*py, n. (Physics)

Defn: Difference of quality or property in different directions.

AEOLUS
Æ"o*lus, n. Etym: [L., fr. Gr. (Gr. & Rom. Myth.)

Defn: The god of the winds.