170 



GLOSSARY. 



or kind of leaf, attached at the 

 base of a spadix and enveloping it 

 in a sheath. 



Spath'ic (Gr. (nradq, spathe, a broad 

 blade). In leaves or plates. 



Spath'ifonn (Germ, gpath, spar; Lat. 

 forma, shape). Resembling spar 

 in form. 



Spa'those (Gr. fftraQf], spathe, a broad 

 blade). In botany, relating to or 

 like a spathe ; in mineralogy, of 

 the nature of spar. 



Spat'ulate (Lat. spatfula, a broad 

 slice). Like a spatula or battle- 

 door ; in botany, applied to leaves 

 narrow at the base, and gradually 

 widening towards a broad-crowned 

 or straight top. 



Spe'cies. In zoology and botany, a 

 collection of individuals resembling 

 each other so closely that they are 

 considered to have originated from 

 a common parent, and having the 

 power of uniform and permanent 

 continuance by propagation. 



Specific (Lat. spe'cies, form or figure ; 

 fadio, I make). Denoting a species; 

 designating the peculiar property 

 or properties which distinguish one 

 species from another ; in medicine, 

 supposed to possess a peculiar effi- 

 cacy in a disease. 



Specific Gravity. The weight of a 

 body, as compared with the weight 

 of an equal bulk or volume of some 

 other body (as water) taken as the 

 standard. 



Specific Volume. In chemistry, 

 the atomic volume, or the num- 

 ber representing the volume in 

 which a body combines. 



Specifica'tion (Lat. spe'cies, forpi ; 

 fac'io, I make). The act of de- 

 termining by a mark ; a statement 

 of particulars, describing a work 

 to be undertaken or an invention. 



fipec'tnim (Lat. spec'to, I behold). 

 In optics, the coloured image formed 

 on a white surface by rays of light 

 passing through a hole, and sepa- 

 rated by a glass prism. 



Spec'ulum (Lat. spec'to, I behold). In 

 medicine, an instrument for examin- 

 ing internal parts by means of light. 



Spel'ter. Native impure zinc, con- 



taining lead, copper, iron, arsenic, 

 manganese, and plumbago. 



Sper'moderm (Gr. (nrep/j.a, sper'ma, 

 seed ; Sep/xo, der'ma, skin). The 

 covering of a seed. 



Sphac'elate(Gr. crtyaiceXos, sphattelos, 

 mortification). To mortify. 



Sphac'elus (Gr. <r0a/ce\os, sphaVelos, 

 gangrene). Death of a part of a 

 living animal. 



Sphseren'chyma (Gr. ffQaipa, sphai'ra, 

 a sphere ; yx v f jLa t en'chuma, tis- 

 sue). Vegetable tissue composed of 

 spherical cells. 



Sphe'no- (Gr. cr<pi\v, sphen, a wedge). 

 In anatomy, a prefix in compound 

 words, implying connection with, 

 or relation to the sphenoid bone. 



Sphe'noid (Gr. a-^v, sphen, a wedge; 

 etSos, eidos, shape). Like a wedge; 

 applied to a bone of the skull, which 

 is wedged in among the other bones. 



Sphe'no-maxiTlary. Belonging to the 

 sphenoid and jaw-bones. 



Sphe'no-pari'etal. Belonging to the 

 sphenoid and parietal bones. 



Sphe'no-tem'poral. Belonging to the 

 sphenoid and temporal bones. 



Sphere (Gr. a<paipa, sphaira, a ball). 

 A round body like a baU ; in 

 geometry, the solid figure formed 

 by the rotation of a semicircle 

 about its diameter, and having a 

 single surface, every part of which 

 is equally distant from the centre ; 

 in astronomy, the concave expanse 

 of the heavens, having the appear- 

 ance of the interior of a hollow 

 sphere ; a right sphere being that 

 aspect in which the circles of 

 motion of the heavenly bodies 

 appear at right angles with the 

 horizon, as at the equator ; a 

 parallel sphere, that in which the 

 same motions appear parallel with 

 the horizon, as at the poles ; and 

 an oblique sphere, that in which 

 these motions appear oblique to 

 the horizon, as at any point be- 

 tween the equator and each pole. 



Spherical (Gr. (rtyaipa, sphaira, a 

 sphere). Like a sphere ; globular ; 

 relating to a sphere. 



Sphericity (Gr. vfyaipa, sphaira, a 

 sphere). Koundness. 



