ARSENIRTTETTED 



ASCI 



Arseniuretted, (a,r-sen-i-u-rot'ted). [Arsenic, 

 g.v.] Saturated with arsenic. Ex. A. Hy- 



Arsmart, (ar'smart). [Named from causing 

 smarting. ]= Polygonum hydropiper. 



Artemisia, (ar-te-mis'i-a). [Artemis, Diana."] 

 = Worm wood: a bitter herb belonging to 

 Anthemideae. A. imfr/arw=Mugwort. A. 

 (tb8inthium=Vform\vood. A. couJa=Stink- 

 iug mayweed. 



Arterial blood, (ar-te'ri-al). [Artery, g.v.] 

 Pure blood, passing from the heart through 

 the arteries to the various parts of the body. 

 A. system, the system of arteries, of which 

 the aorta is the chief. 



Arterialization, (ar-te-ri-al-iz-a'shun). [Ar- 

 tery, q.v.] The purification of venous blood 

 by the action of oxygen, which fits it for 

 passage through the arteries. 



Artery, (ar'ter-i). [arteria, the Greek name.] 

 One of a number of elastic tubes conveying 

 blood from the heart to the capillaries. Caro- 

 tid A., belonging to the neck. Pulmonary 

 A., belonging to the lungs. Hepatic A., be- 

 longing to the liver. Renal A., belonging 

 to the kidneys. Splenic A., belonging to the 

 spleen. 



Artesian wells, (ar-te'si-an). [P. Artois, where 

 they are common.] Openings made in tlio 

 earth deep enough to reach water, which is 

 driven up to find its level. 



Arthrodia, ( ar-thro'di-a). [Gk. arthroo, I 

 join.]=Ball and socket joint, q.v. 



Arthrodieae, (ar-thro'de-e). Bory's term for 

 Algales, q.v. 



Arthrogastra, (ar-thro-gas'tra). [Gk. arthron, 

 joint ; (faster, stomach.] A snb-divi&ion of 

 Arachuida, in which the abdomen is in seg- 

 ments. 



Arthropoda,(ar-throp'o-da). [Glt.arthron, joint ; 

 podes, feet.]=Articulata=Arthropodaria: a 

 sub-division of Annulosa, having jointed 

 limbs attached to an exoekeleton, and thu 

 head com posed of six somites and appendages; 

 includes Insects, Myriapoda, Arachuida, and 

 Crustacea. 



Arthrozoa, (ar-thro-zo'a.) [Gk. arthron, joint; 

 2oo?i, animal.] Used by Burmoister for 

 Vermes, Crustacea, Insecta, Myriapoda, and 

 Arachnida; and by Fitzinger for Crustacea, 

 Arachnida, and Insecta. 



Artichoke, ( ar'ti-chok ). [Ar. ardi, earth; 

 sc/iauki, thorn.] Succulent receptacle of 

 Cynara Scolymus. Jerusalem ^f.=Tubers of 

 Helianthus tuberosus. 



Articular, (ar-tik'u-larjL [L. artieularis, be- 

 longing to a joint.] Relating to, or connected 

 with, a joint. A. bone, a projection of the 

 mandible; also a small bone in the ear=A 

 segment of the malleus. A. processes, bony 

 projections of vertebrae, by which they are 

 connected. 



Articulata, ( ar-tik-u -lata ). [L. articulus, 

 little joint.] 1. A sub-division of Brachio- 

 poda. 2. A sub-division of Polyzoa. 3. A 

 sub-division of Annulosa called Arthropoda. 



Articulated limbs, (ar-tik-u-la'ted). [L. articu- 

 latus, jointed.] Jointed appendages: in 

 Vertebrate uever mure than four, always 



having an internal skeleton. In Inverte- 

 brate the number may be greater than four, 

 and the skeleton is external. 



Artificial, (ar-ti-fish'i-al). [L. ars, art; facia, 

 1 make.] Made by art. A. bases, organic 

 chemical bases formed by synthesis or meta- 

 thesis=Ammonia, Amide, Imide, Nitrile, 

 ami Ammonium, bases. A. stone, stono 

 formed by aggregation of particles of sand by 

 means of cement 



Artiodactyla, (ar-ti-o-dak'til-a). [Gk. ortios, 

 even; daktylos, finger.] A division of Ungu- 

 lata, including the Ruminantia, hippopo- 

 tamus, and all others having either two 

 or four functional toes and a complex 

 stomach. 



Artiomorpha, (;ir-ti-o-mor'fa). [Gk. artios, 

 even;moJVJ&e,Bhape)=Artiozoaria: Ue Blaiii- 

 ville's term for Vertebrata, Articulata, and 

 Mollusca. 



Artiozoaria, ( ar-ti-o-zo-a'ri-a ). [Gk. artios, 

 even; soon, animal.]=Artiomorpha, q.v. 



Artocarpaceae, (ar-to-kar-pa'ee-6). [Artocar- 

 pus, 9.v.]=Artocarpads=Bread-fniit, Ujias. 

 &c.; tropical shrubs and trees belonging to 

 Urticales, with milky sap, dense flower-heads, 

 and edible fruit; many yield caoutchouc. 



Artocarpus, (ir-to-kar'pus). [Gk. artox, bread; 

 karpox, fruit]. A tropical tree belonging to 

 Artocarpaoese. A. tnewa=Breadfruit tree. 

 A. integrifolia=Jnck. tree. 



Arum, (ar'um). [Aron, the Greek name.]= 

 Cuckoo pints: lords and ladies, &c. ; an herb 

 belonging to Araceaj. 



Arvicola, (i^r-vik'o-la). [L. arvum, field; colo, 

 I inhabit.] A field mouse. 



Arytenoid, ( a-ri-te'noid. ) [ Gk. arytaina, 

 pitcher. ] Pitcher-shaped. A. cartitaye: 

 two small cartilages in the larynx. 



Asafoetida, ( as-a-fet'i-da ). [ L. asa, gum ; 

 fmtida, stinking.] 1. A gumresin having a 

 strong unpleasant odour, obtained from 

 Ferula A. and Narthex A. 2. Also used for 

 the plant from which it is obtained. 



Asangos. An African people. 



Asarales, (as-a-rri'lC-z). Plants with mono- 

 chlamydeous flowers, and sm.-ill allxtminous 

 embryo, forming a sub-division of Epigynous 

 Exogens. 



Asbestos, (as-bes'tos). [Gk. asbestos, indes- 

 tructible.] A name used for actinolite, tro- 

 molite, and other minerals of the Amphi- 

 bolic series, occurring in long hair-like crys- 

 tals, which do not burn readily, and VMO 

 fresh are often ductile. 



Ascarides. ( as-kart-dez ). [Ascaris, q.v.]= 

 Thread worms: the plural of Ascaris, q.v. 



Ascarina, (as-ka-ri'na). [Ascaris, q.v.] A 

 plant, the anthers in the flowers of which 

 resemble worms. 



Ascaris, (as'ka-ris). [Gk. atkarizo, I leap.] 

 Thread worm. 



Ascension, (as-sen'shun). [L. ascensio, rising.] 

 Right A.: the distance of a star E. or W. 

 from the first point of Aries, measured along 

 the equinoctial or celestial equator. Ascen- 

 sional di#'emice=Diflerence between right 

 and oblique A. 



Asci, (as'si). [Gk. askos, a leathern bottle.] 



