HISTORIC; HISTORICAL a.
*ric"i*ty, n. There warriors frowning in historic brass. Pope. Historical painting, that branch of painting which represents the events of history. -- Historical sense, that meaning of a passage which is deduced from the circumstances of time, place, etc., under which it was written. -- The historic sense, the capaci…
HYDRAULICS n.
That branch of science, or of engineering, which treats of fluids in motion, especially of water, its action in rivers and canals, the works and machinery for conducting or raising it, its use as a prime mover, and the like.
HYDRODYNAMICS n.
That branch of the science of mechanics which relates to fluids, or, as usually limited, which treats of the laws of motion and action of nonelastic fluids, whether as investigated mathematically, or by observation and experiment; the principles of dynamics, as applied to water and other fluids.
HYDROMETEOROLOGY n.
That branch of meteorology which relates to, or treats of, water in the atmosphere, or its phenomena, as rain, clouds, snow, hail, storms, etc.