ANATOMY. 7 



its phenomena, particularly in its relation to heat and 

 moisture ; the science of meteors. (For names of Meteors, 

 etc., see general heading, Meteors and Atmospheric 

 Phenomena.) 



Ombrom'eter (Gr. ombros, rain, and metron, measure). — An 

 instrument to measure the quantity of rain that falls. 



Pneumat'ics (Gr. j^'teumatik-os, belonging to the air). — The 

 science of the motion and pressure of elastic Jiukh in 

 general, but chiefly of air and steawi. 



Psychrom'eter (Gr. psucliros, cool, and metron, measure). — 

 An instrument for measuring the tension of the uqweoits 

 vapor in the atmosphere. 



Pyr'oscope (Gr. pur, fire, and skopeo, I view). — An instru- 

 ment for measuring the pulsatory motion of the air, or the 

 intensity of heat radiating from a fire. 



TJdom'eter (Gr. hudOr, water, and luctron, measure). — An in- 

 strument for measuring the quantity of water which falls 

 from the atmosphere ; a rain-gauge. 



ANATOMY. 



Anat'omy (Gr. anatemno, I cut up). — The art of dissecting 



animal bodies ; the science which treats of the internal 



structure of the human body. 

 JEdceal'ogy (Gr. aidoia, organs of generation, and logos, a 



discourse). — A treatise on the ovga)is of generation. 

 JEdoeat'omy (Gr. aidoia, and tome, a cutting). — Dissection 



of the parts of generation. 

 .fflsthesiog'raphy (Gr. aisthesis, sensation, perception, and 



grap/u', a descn'ption). — A description of the sensorial 



apparatuses. 

 Angiol'ogy (Gr. aggeion, a vessel, and logos). — A treatise on 



the vessels of the body. 

 Angiot'omy (Gr. aggeion, and tome, a cutting). — Dissection 



of the vessels. 

 Anthropot'omy (Gr. anthropos, a man, and tome, a cutting). 



— Dissection of the human hodg. 

 Aponeurot'omy (Gr. aponeurose, and to7ue). — Dissection of 



the aponeuroses. 

 Arteriol'og'y (Gr. arteria, an artery, and logos, a discourse). 



— A treatise on the arteries. 



