mcol>'92olian harp, '92olian lyre, a musical instrument consisting of a box, on or in which are stretched strings, on which the wind acts to produce the notes; -- usually placed at an open window. Moore. -- '92olian mode (Mus.), one of the ancient Greek and early ecclesiastical modes.>A*'89`the*og"a*mous (#), a. [Gr. unusual ( priv. + custom) + marriage.] (Bot.) Propagated in an unusual way; cryptogamous.'92thermcol>'92olian harp, '92olian lyre, a musical instrument consisting of a box, on or in which are stretched strings, on which the wind acts to produce the notes; -- usually placed at an open window. Moore. -- '92olian mode (Mus.), one of the ancient Greek and early ecclesiastical modes.>'92"ther (#), n. See Ether.'92thiops mineralmcol>'92olian harp, '92olian lyre, a musical instrument consisting of a box, on or in which are stretched strings, on which the wind acts to produce the notes; -- usually placed at an open window. Moore. -- '92olian mode (Mus.), one of the ancient Greek and early ecclesiastical modes.>'92"thi*ops min"er*al (#). (Chem.) Same as Ethiops mineral. [Obs.]'92thogenmcol>'92olian harp, '92olian lyre, a musical instrument consisting of a box, on or in which are stretched strings, on which the wind acts to produce the notes; -- usually placed at an open window. Moore. -- '92olian mode (Mus.), one of the ancient Greek and early ecclesiastical modes.>'92th"o*gen (#), n. [Gr. fire, light + -gen.] (Chem.) A compound of nitrogen and boro, which, when heated before the blowpipe, gives a brilliant phosphorescent; boric nitride.'92thrioscopemcol>'92olian harp, '92olian lyre, a musical instrument consisting of a box, on or in which are stretched strings, on which the wind acts to produce the notes; -- usually placed at an open window. Moore. -- '92olian mode (Mus.), one of the ancient Greek and early ecclesiastical modes.>'92"thri*o*scope (#), n. [Gr. clear + to observe.] An instrument consisting in part of a differential thermometer. It is used for measuring changes of temperature produced by different conditions of the sky, as when clear or clouded.'92tiologicalmcol>'92olian harp, '92olian lyre, a musical instrument consisting of a box, on or in which are stretched strings, on which the wind acts to produce the notes; -- usually placed at an open window. Moore. -- '92olian mode (Mus.), one of the ancient Greek and early ecclesiastical modes.>'92`ti*o*log"ic*al (#), a. Pertaining to '91tiology; assigning a cause. -- '92`ti*o*log"ic*al*ly, adv.'92tiologymcol>'92olian harp, '92olian lyre, a musical instrument consisting of a box, on or in which are stretched strings, on which the wind acts to produce the notes; -- usually placed at an open window. Moore. -- '92olian mode (Mus.), one of the ancient Greek and early ecclesiastical modes.>'92`ti*ol"o*gy (#), n. [L. aetologia, Gr. ; cause + description: cf. F. '82tiologie.]
1. The science, doctrine, or demonstration of causes; esp., the investigation of the causes of any disease; the science of the origin and development of things.
2. The assignment of a cause.