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`'89r*og"no*sy (#), n. [A'89ro- + Gr. knowing, knowledge: cf. F. a'82rognosie.] The science which treats of the properties of the air, and of the part it plays in nature.Craig.