104 MEDICINE. 



portant science that furnishes the principles upon which 

 eni^ines are constructed by wliich water is raised. It treats 

 of pumps, fountains, etc. 



Hydrodynam'ics (Gr. hudOr, water, and dunamis, power). — 

 Treats of tlie properties and rehitions of water and other 

 fluids, whether in motion or at rest. It includes 

 Hydrostatics, which regards fluids at rest, and 

 IlvDRAULlcs, which re<;;ards fluids in motion. 



Kinemat'ics (kiueo, to move). — A term used by some writers 

 to denote the doctrine which treats of the p//ec/.s of motion 

 without reference to its causes, and in contradistinction to 

 dynamics. 



Mech'anurgy (Gr. mechaue, a machine, and ergein, to work). 

 — That branch of science which treats of moving ma- 

 cliines. 



Pneumat'ics (Gr. pneumatikos, belonging to the air). — Treats 

 of air, steam, and other elastic fluids. 



Pyrom'eter (Gr. pur, fire, and mefrou, measure). — An instru- 

 ment for measuring the expansion of bodies by heat. 



Stat'ics (Grr. sfatiL-os, belonging to a state of rest. ) — Treats of 

 the force that keeps bodies at rest or in equilibrium. 



Trochilics (Gr. trochos, anything circular, a wheel). — The 

 science of rotary motion. 



MEDICINE. 



Med'icine. — The art of preventing, curing, or alleviating the 

 iliseases of the human body. 



Acology (Gr. akos, a remedy, and loffos, a discourse). — Materia 

 J/edica — the doctrine of remedies. 



Allopathy (Gr. alios, another, and pathos, affection). — The 

 opposite to Homoeopathy ; or, according to Hahnemann, a 

 method of treatment in which remedial agents are em- 

 ployed, the action of which on healthy man produces 

 morbid phenomena difierent from those that are observed 

 in the sick person. 



Asthenology (Gr. a, sthenos, strength, and logos, a discourse). 

 - — The doctrine of diseases connected with debility. 



Atmom'eter (Gr. atmos, vapor, and metron, a measure). — An 

 instrument to measure the quantity of exhalation from the 

 human surface in a given time. 



Ausculta'tion. — A method of distinguishing diseases, particu- 



