SIP 



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SMU 



Siphonia, n., slf-on'-l-a (Gr. siphon, 

 a tube), a genus of plants, Ord. 

 Euphorbiaceae, so named from 

 the use made of their exudation : 

 Siphonia elastica, n., Z-last'-ik-a 

 (mid. L. elasticus, elastic), a 

 species which contains much 

 caoutchouc, and supplies the 

 bottle india-rubber. 



Siphonophora, n. plu., sif'tin-of'- 

 or-d (Gr. siphon, a tube ; phorZo, 

 I bear), a division of the Hydrozoa: 

 Siphonostomata, n. plu., slf-on- 

 ds-tdmf'dt'd(GT. stoma, a mouth), 

 a division of the Gasteropodous 

 Molluscs, in which the aperture 

 of the shell is not entire, but has 

 a notch or tube for the emission 

 of the respiratory siphon. 



siphuncle, n., sif-ung'-kl (L. siph- 

 unculus, a little pipe from sipho, 

 a tube), any small tube or tubular 

 passage ; the tube - like perfora- 

 tion which passes through the 

 septa and chambers of such shells 

 as the nautilus, the ammonite, 

 etc. ; the tube which connects 

 together the various chambers of 

 the shell of certain Cephalopoda : 

 Siphunculoidea, n. plu. , sif-ung< 

 Tcul-oyd'-e-a (Gr. eidos, resem- 

 blance), a class of Anarthrop- 

 oda. 



Sirenia, n. plu., str-en'i-d (L. 

 siren, Gr. seiren, a siren), an 

 Order of Mammalia, comprising 

 the Dugongs and Manatees. 



sitiology, n., sit'-i-ol'-o-ji (Gr. sltos 

 or sltion, bread ; logos, a dis- 

 course), the doctrine or considera- 

 tion of aliments ; dietetics. 



Sium, n., sl'-um (Gr. seid, I 

 quiver, from its motion in the 

 water), a genus of plants, Ord. 

 Umbelliferae, which thrive best 

 in very moist soil : Sium sisar- 

 mn, sis'-dr-um (Gr. sisdrdn, L. 

 siser, a plant with an esculent 

 root, skirret), a species whose 

 succulent roots were formerly 

 esteemed in cookery, under the 

 name of * skirret.' 



slashed, a., sltisht (an imitative 



word), in bot., deeply gashed; 

 divided by very deep incisions. 



slough, n. , sluf (AS. slog ; Icel. 

 slog, anything cast off or thrown 

 away), the dead structure of 

 flesh that separates from a wound, 

 or during mortification. 



smegma, n., smeg'md (L. smegma, 

 Gr. smegma, a detergent, soap), 

 the white substance often seen 

 upon the skin of new-born infants : 

 smegma preputii, pre-push'4-l 

 (L. prceputmm, the foreskin or 

 prepuce, prceputii, of the foreskin), 

 the secretions of Tyson's glands 

 which surround the base of the 

 glans penis. 



Smilacese, n. plu., smil-a'se-e (L. 

 smllax, bindweed, smildcis, of 

 bindweed), the Sarsaparilla fam- 

 ily, an Order of plants having 

 mucilaginous and demulcent prop- 

 erties : Smilax, n. , smil'dks, a 

 genus of plants, the roots of 

 various of the species constituting 

 sarsaparilla or sarza, as the fol- 

 lowing Smilax officinalis, of-fis'- 

 m'CiV-is (L. officinalis, by author- 

 ity, officinal); S. medica, m$d'- 

 ik-d (L. medicus, medical); S. 

 syphilitica, sif-tt-tt'-ik-d (new L. 

 suphiliticus, of or pert, to syph- 

 ilis); S. papyracea, pdp'-ir-af'Se-d 

 (L. papyrus, the paper reed) ; and 

 S. Brasiliensis, brdZ'il'.i-Zns'-is 

 (of or from Brazil), the roots of 

 all of them are mucilaginous, 

 bitterish, and slightly acrid ; 

 sarsaparilla is used in decoction 

 and infusion as a tonic and alter- 

 ative, in cachexia, and syphilis : 

 S. China, tshin'd (of or from 

 China}, a species which yields 

 the china-root, used as a remedy 

 in syphilis. 



smut, n., smut (Ger. schmutz, 

 dirt, mud), a powdery matter, 

 having a peculiarly foetid odour, 

 which occupies the interior of dis- 

 eased grains of wheat and other 

 cereals, caused by a parasitic fungus 

 called 'Uredo caries' or 'fbetida' 

 also called 'bunt,' 'pepper-brand,' 



