

SECTORIAL 



1311 



SEGMENT 



bregmatis ; the maxillary sector is that bounded by 

 a radius to the punctum naso-frontale and one passing 

 through the punctum spinae nasalis posterioris ; the 

 medullary sector is that included between a radius to 

 the punctum foraminis magni anterius and one passing 

 through the punctum foraminis magni posterius ; the 

 nasal sector is that bounded by a radius to the punctum 

 spinx nasalis anterioris and one which, if prolonged, 

 would pass through the punctum naso-frontale ; the oc- 

 cipital sector is included between a radius to the punctum 

 occipitale and one to the punctum protuberantiae occipi- 

 talis ; the palatine sector is contained between a radius 

 to the punctum spinas nasalis posterioris and one pass- 

 ing through the punctum pnemaxillare ; the parietal 

 sector is included between a radius to the punctum breg- 

 matis and one passing through the punctum occipitalis ; 

 the premaxillary sector is that bounded by a radius 

 to the punctum praemaxillare and one to the punc- 

 tum spinae nasalis anterioris : the sector for the cavum 

 t>har\tigeum is contained between a radius termi- 

 nated by the punctum foraminis magni anterius and one 

 to the punctum spinse nasalis posterioris (Lissauer). 



Sectorial sek-to'-re-al) [sextor, a sector]. Carnassial. 



Secund (sek'-und) [secundus, following]. In biology, 

 arranged on one side of a stem or axis. 



Secundina (se-kun' -de-nah) [L.]. Something follow- 

 ing. S. cerebri, the pia mater. 



Secundine or Secundines \se-kun f -din) [secundin<z~\. 

 In biology: (a) the "after-birth," or that which 

 remains in the uterus after the expulsion of the fetus. 

 It includes the placenta, part of the umbilicus, and 

 the membranes of the ovum ; (b) the. inner coat of 

 an ovule ; also called the mesosperm. 



Secundum artem ( se-kun r -dun> ar f -tem ) [L. , "ac- 

 cording to art " ] . In the approved, professional, or 



| official manner ( used in writing prescriptions, as a 

 direction to the apothecary). 



Securiform (se-ku' -rif-orm) [securis, an ax ; forma, 

 form]. In biology, ax-shaped. 



Secas (se / -hits) [L.]. Sex. 



;Sedan Black. See Pigments, Conspectus of . 

 Sedans t'-danz) [L. : //., Sedantia~\. Sedative; a 



I sedative medicine. See Liquor sedans. 

 Sedation (se-da'-shun) \_sedatio~\ . A condition of quiet 

 and tranquillity, especially when following excessive 

 functional activity. 

 Sedative s:d'-at-iv) [sedare, to soothe]. I. Soothing or 



I tranquilizing. 2. An agent that exerts a soothing effect 



by lowering functional activity. S. Salt, boric acid, 

 iedentaria (sed-en-ta f -re-ah) [L.]. Plural of Seden- 

 tarius, sedentary. S. ossa, the ischia and os coccygis, 

 the bones on which the body rests while in a sitting 

 posture. 



edentary (sed'-en-ta-re) \sedentarius ; sede re, to sit]. 

 \ Occupied in sitting ; sitting at one's work. Pertaining 

 to the habit of sitting. 



edes (se'-dez) [L.]. Anus; stools. S. cruentae, 

 bloody stools. S. lactescentes, celiac flux. S. pro- 

 cidua, prolapse of the anus. 



edigitate, Sedigitated (se-dif-it-at. se-dij'-it-a-ted) 

 \sedigitus : sex, six ; digitus, digit]. Having six 

 fingers on a hand, or six toes on a foot, 

 edilia (se-dil'-e-ak) [sedile, a seat]. The nates, 

 ediment (sed'-im-ent) [sedimentum : pi., Sedirnenta]. 

 That which settles to the bottom of a liquid. S., 

 Urinary, the solid constituents of urine, organic and 

 inorganic, which are deposited on standing. See 

 Urinary. 



edimentation (sed-im-en-ta' -shun) [sedimentum, sedi- 

 I ment]. The process of producing rapid deposition of 

 'he sediment of urine or sewage by means of centrifu- 

 gal or other apparatus. 



Sedlitz (sed'-litz). See Seidlitz. 



Sedum (se / -dum) [L., houseleek]. A genus of crassu- 

 laceous plants. Stonecrop, wall-pepper, creeping Jack, 

 gold-dust. S. acre, a moss-like creeping plant indig- 

 enous to Europe, and naturalized in some places in 

 North America. The expressed juice is emetic, pur- 

 gative, and also capable of vesication. It was formerly 

 used as a remedy for scrofula, and administered inter- 

 nally in decoction, while externally the bruised fresh 

 plant was applied. Unof. S. telephium, Live-for-ever, 

 a species of salad indigenous to Europe, and introduced 

 in the United States. The root and herb were for- 

 merly official as radix et kerba telephii. 



See's Treatment. See Treatment, Methods of. 



See-saw Eczema, a form of eczema alternating with 

 some other disease. 



Seed (sed) [AS., s<?d, seed, sowing], (a) A fertilized 

 ovule or ovum, as the egg of the silkworm-moth. 

 ['• Naked seeds meant to all botanists up to the time 

 of A. L. de Jussieu and J. Gartner (1788) dry inde- 

 hiscent fruits,"' Sachs] ; (b) seminal fluid ; sperm or 

 milt ; (c) offspring, as young oysters. S.-coat, in 

 biology, the testa or exterior coat of the seed. Cf. 

 Primine, Secundine. S.-lac. See Lac. 



Seedy-toe (se / -de-to) [Fr., fourmiliete\. The English 

 common name for an affection of the hoof of Equidce. 

 More frequent in the ass and mule than in the horse. 

 It is held to be due to the fungus, Achorion kerato- 

 phagus, q. v. (Ercolani.) 



Seegen's Dietetic Regimen. A regimen for diabetics, 

 consisting of meats of all kinds, eggs, corn, vegetables, 

 cheese, and gluten bread. 



Seemann and Hehner's Method. A method of esti- 

 mating the amount of acids in the stomach. It con- 

 sists in neutralizing the gastric contents by titrating 

 with NaOH, evaporating to dryness, and carefully in- 

 cinerating. The ash is extracted with water, and the 

 alkali present in the extract is estimated by titrating 

 with an acid; the difference between the amount of 

 alkali added and the amount of alkali found gives the 

 amount which must have combined with HC1, the 

 lactic and volatile acids being decomposed during in- 

 cineration. 



Seessel's Pocket or Pouch. See Pouch. 



Segestor (se -jes'-tor) \se, self; gerere, to carry]. A 

 proprietary embalming fluid, introduced into the ves- 

 sels of the cadaver by a syringe ; so called because it 

 has the alleged property of finding its way to all parts 

 of the dead organism. 



Segment (seg'-ment) [segmentutn ; secare, to cut]. I. 

 A small piece cut from the periphery of anything. 2. 

 A natural division, resulting from segmentation ; one 

 of a series of homologous parts, as a myotome ; the 

 part of a limb between two consecutive joints. A 

 subdivision, ring, lobe, somite, or metamere of any 

 cleft or articulated body. S. of Bandl. See 

 Bandl' s Ring. S., Interannular, the portion of 

 a nerve included between two consecutive nodes 

 of Ranvier. S., Intermediate {of a cilium), the 

 isotropous, delicately striated portion of a cilium 

 between the cilium proper and its pedicle. S., 

 Lower (of the uterus) , all that portion of the uterus 

 situated below the ring of Bandl. Ss., Medullary, 

 the incisures of Schmidt and Lautermann, or oblique 

 markings in the medullary sheath of a nerve-fiber. 

 S., Primitive, Minot's word for a primitive division 

 of the vertebrate celom. The protovertebra, meso- 

 blastic somite, mesomere, metamere, L'rsegment, L'r- 

 vrirbel, of authors. S., Pubic (of the pelvic floor) ; this 

 " consists of what extends from the symphysis pubis 

 to the anterior vaginal wall, inclusive of the latter, 

 and is chiefly made up of bladder." (D. B. Hart.) 



