GLOSSARY. 



Abrupt (Lat. ab, from ; rumpo, I 

 break). Broken off; in botany, 

 applied to leaves and roots which 

 appear as if the extremity had been 

 cut off. 



Abscess (Lat. abscedo, I depart). 

 A collection of pus or matter. 



Abscis'sa (Lat. abscin'do, I cut off). 

 That part of the diameter of a conic 

 section which lies between the vertex 

 or some other fixed point and a semi- 

 ordinate, or the half of a straight 

 line drawn at right angles to the 

 axis. 



Abscis'sion (Lat. ab, away ; scindo, I 

 cut). A cutting away, or removal. 



Ab'solute (Lat. ab, from ; solvo, I 

 loosen). Independent ; perfect or 

 complete in itself ; pure. 



Absorb'ent (Lat. absorb'eo, I sup up). 

 Having the property of sucking or 

 supping up fluids, as a sponge. 



Absorp'tion (Lat. absorb'eo, I sup up). 

 The act or process of sucking or 

 supping up moisture. 



Abster'gent (Lat. abster'geo, I wipe 

 clean). Cleansing. 



Abstract (Lat. abs, from ; traho, I 

 draw). Separate ; applied to the 

 ideas of number, properties of mat- 

 ter, &c., considered by themselves 

 without reference to the subject 

 which they qualify ; an outline of a 

 treatise or writing. 



Abstraction (Lat. abs, away ; traho, 

 I draw). Removal ; a taking away ; 

 the consideration of a part or pro- 

 perty of an object independently of 

 the rest. 



Acale'phse (Gr. d*a\T?4>r?, acalephe, a 

 nettle). A class of sea-animals of the 

 radiated division ; so called because 

 some of them, when taken in the 

 hand, sting like nettles. 



Acantha'ceous (Gr. ana-vSa, acantha, 

 a spine). Having prickles. 



Acanthoceph'ala (Gr. a.Kavea,acantha, 

 a spine ; Ke^aAr?, keph'ale, the head). 

 Intestinal worms having the head 

 armed with spines or hooks. 



Acanthopteryg'ii (Gr. a.KavOa,acantha, 

 a spine ; irrepvyiov, pteru'gion, a fin). 

 An order of fishes having the first 

 fin supported by bony spiniform 

 rings. 



Acar'diac (Gr. d, a, not ; 



kar'dia, a heart). Without a heart. 



Acaules'cent (Gr. d, a, not ; Lat. 

 caulis, a stem). Having no stem. 



Acaulous (Gr. d, a, not ; Lat. caulis, 

 a stem). Stemless. 



Accelerate (Lat. ad, to ; celer, quick). 

 To quicken. 



Accelerated motion. In mechanics, 

 that motion which constantly re- 

 ceives additional velocity. 



Accelerator (Lat. ad, to ; cel'er, quick). 

 That which quickens : applied in 

 anatomy to certain muscles. 



Acces'sory (Lat. accedo, I approach, 

 or am added to). Added to some 

 person or thing in a secondary rela- 

 tion. 



Aocip'itres (Lat. ad, to ; capio, I 

 take). An order of birds including 

 the rapacious fowl, as the eagle, 

 vulture, hawk, &c. 



Acclima tion (Lat. ad, to ; Gr. K\t/^a, 

 klima, a region of the earth). The 

 process of becoming accustomed to 

 a climate. 



Accliv'ity (Lat. accllvus, ascending). 

 A slope of the earth, considered as 

 ascending. 



Accre'tion (Lat. ad, to ; cresco, I 

 grow). A growing or increase ; a 

 growing together. 



Accumulation (Lat. ad, to ; cumulo, 

 I heap up). A heaping together ; 

 in mechanics, accumulation of 

 power is the quantity of motion 

 existing in machines after constant 

 acceleration of the velocity of the 

 moving body. 



Aceph'ala (Gr. d, a, not; KeQaXr), 

 keph'ale, a head). An order of in- 

 vertebrate animals without a head ; 

 including oysters, mussels, and 

 other bivalve animals. 



Aceph'alocyst (Gr. d/ce<|>aAos, aJceph'- 

 alos, headless ; KV<TTLS, kustis, a 

 bladder). A parasitic hydatid con- 

 sisting of a headless cyst or bag. 



Aceph'alous (Gr. d, a, not ; Ke<aA?7, 

 keph'ale, a head). Without a head. 



Ac'erose (Lat. acus, chaff). In botany, 

 resembling chaff : applied to leaves 

 which are linear and permanent, as 

 in the pine or juniper. 



Aces'cent (Lat. acesco, 1 grow sour). 



