AMPLITUDE n. 3 definitions
The arc of the horizon between the true east or west point and the center of the sun, or a star, at its rising or setting. At the rising, the amplitude is eastern or ortive: at the setting, it is western, occiduous, or occasive. It is also northern or southern, when north or south of the equator.
ANDROPOGON n.
Johnson grass, the Aleppo grass, the broom corn, and the durra, or Indian millet. Several East Indian species, as A. nardus and A. schonanthus, yield fragrant oils, used in perfumery.