OLE 



288 



OME 



olefiant, a., oW-fl'-ant (L. oleum, 

 oil ; J'acio, I make), applied to a 

 gas obtained by heating a mix- 

 ture of two measures of sulphuric 

 acid, and one of alcohol so 

 named from forming an oily 

 liquid, called Dutch liquid, when 

 mixed with chlorine. 



oleic, a., 6l'-%4k (L. tittum, oil), 

 applied to the oily acid resulting 

 from the action of .linseed, or 

 other oil, upon potash, or during 

 the manufacture of soap : olein, 

 n., dl'e-in, the pure liquid por- 

 tion of oil and fat : oleo -resin, 

 oV'Z-d-rez'm, the natural mixture 

 of a resin and an essential oil, 

 forming the vegetable balsams 

 and turpentines. 



oleraceous, a., ol'-Zr-d'-shus (L. 

 olerdceus, resembling herbs 

 from olus, any garden herbs for 

 food), having the nature and 

 Dualities of pot-herbs ; used as 

 an esculent pot-herb. 



oleum jecoris aselli, ol'&um jek f > 

 dr-is as>H''li (L. dleum, oil;jecur, 

 the liver, jectiris, of the liver ; 

 as%ttus, a cod, as8lli, of a cod), 

 the oil of the liver of the cod ; 

 cod-liver oil. 



olfactory, a., tt-f&Mttr* (L. ol- 



factum, to smell, to scent from 

 dl$o, I smell ; facid, I make), 

 having the sense of smelling ; 

 olfactory nerves, nerves emerg- 

 ing from the brain, one on each 

 side of the septum of the nose, 

 which are distributed to the 

 mucous membrane of the nares, 

 and convey to the brain odorous 

 sensations. 



olibanum, n., dl'ib'an-um (Ar. 

 ol or al, the ; lubin, frankincense ; 

 Gr. libanos, the frankincense tree), 

 a gum resin of a bitterish taste, 

 and aromatic, forming a frankin- 

 cense procured from the stems of 

 several species of the genus Bos- 

 wellia, Ord. Burseraceae, inhabiting 

 the hot and arid regions of eastern 

 Africa, and south of Arabia. 



oligandrous, a., Wig-and'-rus (Gr. 



oltgtis, few ; aner, a male, andros, 

 of a male), in lot., having less 

 than twenty stamens. 



oligochaeta, n. phi., dl'-ig-o-Jcet'ti 

 (Gr. oligds, few ; chaite, hair), in 

 zooL, an order of Annelida, 

 having few bristles or hairs, as in 

 rthe earth-worms. 



oligospermous, a^dl'ig-d-sperm'- 

 (Gr. olig$8, few ; sperma, seed), 

 in bot. , having few seeds. 



olivaceous, a., ftl'-lv-af-slius (L. 

 ollva, an olive), of a dusky- green 

 or olive colour ; having the 

 qualities of olives : olivary, a., 

 dl'iv-ar-%, in the encephalon, a 

 name applied to two prominent 

 oval masses placed to the outer 

 side of the pyramids, and sunk to 

 a considerable depth in the sub- 

 stance of the ' medulla oblongata, ' 

 so called from their shape : 

 olivile, n., 8l f 4v4l, a resinous 

 exudation procured from the 

 bark of ' Olea Europaea,' used as a 

 tonic. 



omasum, n., dm-dMm (L. omas- 

 um, bullock's tripe), the third 

 -stomach, or manyplies, of rumin- 

 ant animals ; the ' psalterium. ' 



omentum, n., om-Znt'-um (L. dm- 

 entum, the membrane enclosing 

 the bowels), a membranaceous 

 covering of the bowels immedi- 

 ately above the intestines, and 

 enclosing more or less fat ; the 

 caul: omenta, n. plu., om^nt^d, 

 folds of the peritoneum, which 

 proceed from one viscus to an- 

 other, are three in number ; the 

 great omentum, consisting of 

 four layers of peritoneum, two of 

 which descend from the stomach, 

 one from its anterior, and the 

 other from its posterior surface ; 

 the lesser omentum, the duplic- 

 ature of the peritoneum which 

 extends between the transverse 

 fissure of the liver and the lesser 

 curvature of the stomach ; the 

 gastro - splenic omentum, the 

 fold of the peritoneum which 

 connects the concave surface of 



