GLOSSARY. 



61 



being multiplied or divided by the 

 same number. 



Equivalent (Lat. ceguus, equal ; 

 val'eo, I am worth). Equal in value 

 or power ; in chemistry, a term 

 applied to the numbers in which 

 elements uniformly replace each 

 other in combination. 



Erec'tile (Lat. e'rigo, I raise up). 

 Having the property of raising 

 itself. 



Erec'tor (Lat. e'rigo, I raise up). That 

 which raises up : applied to some 

 muscles. 



Eremacau'sis (Gr. ypffJLa, erema, gra- 

 dually ; KO.IW, Icail, I burn). Slow 

 combustion : the process by which 

 the matters formed in the fermen- 

 tation and putrefaction of animal 

 and vegetable bodies combine gra- 

 dually with the oxygen of the air. 



Er'ethism (Gr. tyedtfa, erethi'zo, I 

 excite). Excitement ; unnatural 

 energy of action. 



Er'gotism (Ergot, spurred rye). A 

 diseased state, characterised by a 

 kind of mortification, produced by 

 eating spurred rye. 



Ero'dent (Lat. e, out ; rodo, I gnaw). 

 Eating into ; gnawing. 



Ero'sion (Lat. e, from ; rodo, I gnaw). 

 The state of eating or being eaten 

 away. 



Erratic (Lat. crro, I wander). Wan- 

 dering ; not fixed ; occurring in a 

 casual manner. 



Er'rhin.e (Gr. eV, en, in ; friv, rhin, 

 the nose). Affecting the nose ; 

 producing discharge from the nose. 



Eructation (Lat. erne 1 to, I belch). A 

 bursting forth of wind from the 

 stomach ; or of gases or other matter 

 from the earth. 



Erup'tion (Lat. e, out ; rumpo, I 

 break). A breaking forth ; a rash 

 on the skin. 



Erysip'elas (Gr. e>o>, eruo, I draw ; 

 TreAas, pelas, near). A spreading 

 inflammation of the skin ; St. An- 

 thony's fire. 



Erythe'ma (Gr. fyufyoy, eru'thros, 

 red). A superficial redness of the 

 skin. 



Esca'pement. An apparatus in 

 clocks and watches for regulating 



the action of the pendulum or ba- 

 lance wheel. 



Escarpment. (Fr. escarper, to cut 

 a slope. ) Ground cut away nearly 

 vertically about a military position ; 

 also a natural cutting away of the 

 ground, as in ravines. 



Eschar (Gr. foxapa,es'chara, a hearth 

 or gridiron). A crust or scab pro- 

 duced by heat or caustics. 



Escharot'ic (Gr. ecrxapa, es'chara, a 

 hearth or gridiron). Producing an 

 eschar or crust on the flesh. 



Esophagot'omy (Gr. olaotyayos, oi- 

 soph'agos, the oesophagus ; rf/j.vw, 

 temno, 1 cut). The operation of 

 making an incision or opening into 

 the oesophagus. 



Esoph'agus (Gr. olta, old, I carry ; 

 (payta, pha(/o, I eat). The gullet, 

 or tube which carries food to the 

 stomach. 



Esoter'ic (Gr. eVw, eso, within). Pri- 

 vate ; applied to the private in- 

 structions of Pythagoras. 



Es'sence (Lat. esse, to be). The par- 

 ticular and distinguishing nature of 

 a being or substance. 



Essen'tial (Lat. esse, to be). Neces- 

 sary to the constitution of a thing ; 

 specially distinctive. 



Esthetics. See ^sthet'ics. 



Estiva'tion (Lat. cestas, summer). 

 The manner in which the petals of 

 a flower are arranged within the 

 bud. 



Es'tuary (Lat. cestus, tide). An arm 

 of the sea, or mouth of a river, 

 where the tide meets the current. 



Ethe'real (Gr. alfyp, aither, ether). 

 Relating to or formed of ether. 



Etherisa'tion (Ether). The production 

 of insensibility by inhaling the 

 vapour of ether. 



Ethical (Gr. ^Qos, ethos, habit of 

 men, manners). Relating to public 

 manners or morals. 



Ethics (Gr. r?0os, ethos, manners). 

 The science of moral philosophy, or 

 of the duties of men. 



E'thmoid (Gr. r?0,uoy, ethmos, a sieve ; 

 6<Sos, eidos, form). Perforated 

 with holes like a sieve. 



Ethnol'ogy (Gr. tQvos, ethnos, a na- 

 tion; \oyos, logos, discourse). The 



