GLOSSARY. 



155 



Relief Valve. A valve in an air- 

 pump, to prevent the momentary 

 condensation of air in the receiver 

 when the piston descends. 



Re'miges (Lat. re'mex, a rower). The 

 large quills of the wings of birds. 



Remiftent (Lat. re ; mitto, I send). 

 Ceasing for a time ; applied to 

 diseases of which the symptoms 

 alternately diminish and return, 

 but without ever leaving the patient- 

 quite free. 



Renaissance (French, from renattre, 

 to be born again). The revival of 

 anything which has long been in 

 decay, or obsolete. 



Re'niform (Lat. ren, a kidney ; form' a, 

 shape). Resembling a kidney. 



Reo-. For words with this beginning, 

 see Rhe'o-. 



Repeat'er (Lat. rep'eto, I seek again, 

 or repeat). That which repeats ; 

 in arithmetic, a decimal in which 

 the same figure continually recurs. 



Re'pent (Lat. re'po, I creep). In 

 natural history, creeping. 



Rep'etend (Lat. rep'eto, I repeat). 

 That part of a repeating decimal 

 which recurs continually. 



Reproduc'tion (Lat. re; produ'co, 

 I produce). The art or process 

 of producing again. 



Rep' tiles or Reptilia (Lat. re'po, I 

 creep). Cold-blooded vertebrate 

 animals, breathing air incompletely 

 from birth, and having the circu- 

 lation so arranged that a portion of 

 the venous blood mixes unchanged 

 with the arterial ; as the serpent, 

 crocodile, and tortoise. 



Repul'sion (Lat. re ; pel'lo, I drive). 

 A driving back ; the power or 

 principle by which bodies, or the 

 particles of bodies, under certain 

 circumstances recede from each 

 other. 



Resid'ual (Lat. resid'uus, that which 

 is left). Remaining after a part is 

 taken. 



Resid'uum (Lat.). A remainder. 



Res'inous Electricity. A name given 

 to negative electricity, from its 

 being developed by the friction of 

 resinous substances. 



Resolu'tion (Lat. re; solvo, I loosen). 



The process of separating the parts 

 which form a complex substance or 

 idea ; in mathematics, the enume- 

 ration of things to be done in order 

 to obtain what is required in a 

 problem ; in dynamics, the revo- 

 lution of forces is the dividing of 

 any single force or motion into two 

 or more others which, acting in 

 different directions, shall produce 

 the same effect as the given motion 

 or force. 



Respira'tion (Lat. re; spirt, I 

 breathe). The act of breathing, 

 or the process by which the blood 

 is brought under the action of air 

 for the purpose of purification. 



Res'tiform (Lat. restis, a cord ; forma, 

 shape). Like a cord. 



Resultant (Lat. resul'to, I leap back). 

 In dynamics, the force which re- 

 sults, or arises from, the composi- 

 tion or putting together of two or 

 more forces acting from different 

 directions on the same point. 



Resuscita'tion (Lat. re; sus'dto, I 

 raise). The act of raising from 

 apparent death. 



Retarda'tion (Lat. re ; tardus, slow). 

 A making slow. 



Rete Mirab'ile (Lat. a wonderful net). 

 An arrangement of blood-vessels, 

 in which an artery suddenly divides 

 into small anastomosing branches 

 which, in many cases, unite again 

 to form a trunk. 



Re'te Muco'sum (Lat. rete, a net; 

 muco'sus, mucous). The mucous 

 network : a name sometimes given 

 to the soft under layer of the 

 epidermis or scarf-skin. 



Retic'ular (Lat. retic'ulum, a small 

 net). Having the form of a net- 

 work. 



Reticula'ted (Lat. retic'ulum, a small 

 net). Arranged like a network. 



Retic'ulum (Lat. a little net). The 

 second, or honeycombed cavity in 

 the compound stomach of ruminant 

 animals. 



Re'tiform (Lat. re'te, a net ; forma, 

 shape). Having the form of a net. 



Retina (Lat. re'te, a net). One of 

 the coats of the eye, consisting of 

 the expansion of the optic nerve in 



