lOG MEDICINE. 



properties of all the substances that are employed for the 

 cure of diseases. 



Metabolel'ogy (Gr. metahoU, change, and logos, a discourse). 

 — A description of the changes which supervene in the 

 course of a disease. 



Nosorogy (Gr. nosos, disease, and logos). — That branch of 

 medical science which treats of the classification of 

 diseases. 



Obstet'rics (Lat. ohsfetrix, a midwife). — The science of mid- 

 wifery ; the art of assisting women in parturition. 



Ophthalmotorogy (Gr. ophthalmos, the eye, and logos). — The 

 science of ophthalmia, or a treatise on it. 



Osmonosol'ogy (Gr. osme, an odor, nosos, a disease, and logos, 

 a discourse). — The doctrine of, or a treatise on, the dis- 

 eases of the sense of smell. 



Osphresiol'ogy (Gr. osphresis, smell, and logos). — A treatise 

 on olfaction and odors. 



Ourol'Dgy (Gr. ouron, urine, and logos, a discourse). — The 

 judgment of diseases from the examination of the urine. 



Pathog'eny (Gr. patlios, suffering, and genaio, I produce). — 

 Tliat branch of pathological science which relates to the 

 generation, production, and development of disease. 



Pathol'ogy {(}i\ p)athos, suffering, and logos). — That part of 

 medicine which explains the nature of diseases, their 

 causes and symptoms. 



Pedot'rophy. — The doctrine of the nourishment of children. 



Pep'tics {Grr. pepsis, digestion). — The doctrine of digestion. 



Percus'sion. — The act of determining the condition of an in- 

 ternal organ by the sound given when the external surface 

 is gently knocked upon. 



Pharmacorogy (Gr. pharmahon, a medicine, and logos, a dis- 

 course). — The science or knowledge of drugs, or the art 

 of preparing medicines. 



Phar'macy, or Pharmaceu'tics. — The art of preserving, pre- 

 paring, compounding, and combining whatever substances 

 may be necessary for medical purposes. 



Phon'aseet'ics (Gr. plionaskco, I practise the voice). — The art 

 or method of restoring the voice. 



Posol'ogy (Gr. posos, how much, and logos). — The science or 

 doctrine of doses. 



Psychonosology (Gr. psuche, mind, nosos, a disease, and logos). 

 — The doctrine of, or a treatise on, diseases of the mind. 



