1 64 GLOSSARY. 



.ZEsthe'siom'eter (Gr. aisthesis, perception ; metron, a measure). 



A graduated instrument for estimating the sensibility 



of a surface. 

 Ag'oraphobia (Gr. agora, an assembly ; phobia, fear). A 



variety of giddiness associated with disturbance of semi- 

 circular canals. 

 A'graphia (Gr. a, not ; graphein, to write). Inability to 



execute the movements necessary for writing. 

 Albu'menoids (L. albus, white ; whence albu-men, lit. whiteness). 



A group of nitrogenous substances allied to albumins, 



but possessing important points of difference. 

 Albumo'ses (L. albus, white). The first products in the split- 

 ting up of proteids by ferment, from which peptones are 



formed. 

 Allox'an (der. allantoin cf. Gr. allantoid, from allant, 



sausage + -eides, shaped and oxallic, from Gr. o&alis, 



sorrel). A nitrogenous substance obtained when uric acid 



is acted upon by nitric acid. 

 Almen's test. For blood by means of guaiacum and ozonic 



ether. 



Amauro'si* (Gr. amauros, obscure). Blindness. 

 Amblyo'pia (Gr. amblus, blunt, weak; ops, the eye). A 



nervous weakness of vision. 

 Amne'sia (Gr. a, without ; mnesis, memory). A variety of 



aphasia in which there is loss of memory for words. 

 Amor'phous (Gr. a, without ; morphe, form or shape). Without 



definite or regular shape. 

 Ampere's rule. A rule for determining the direction of 



galvanic currents. 

 Ampho 'peptone (Gr. ampht, on both sides; pepto, I digest). 



A mixture of hemi and antipeptone. 

 Am'yloid substance (Gr. amu/on ; L. amylum, starch). A 



proteid substance found deposited in the tissues, resulting 



from a pathological process. Gives a red colour with 



methyl violet. Also called " Lardacein." 

 Am'ylopsin (Gr. amulon, starch). A ferment of the pancreatic 



juice which converts starch into maltose. 

 Anabolic (Gr. ana, up ; ballo, I throw). An exciting influence, 



exerted by certain nerves, which increases metabolism. 

 Anab'olism (Gr. ana, up ; ballo, I throw). Synthetic or 



constructive metabolism. 

 Anacrot'ic (Gr. ana, up ; krotos, a striking). Applied to a 



pulse tracing in which interruptions occur in the ascent. 



