SEM 



378 



SEP 



consists of thin, narrow fasciculi, 

 interposed between tendons of 

 considerable length: s. colli, 

 "kol'-li (L. collum, the neck, colli, 

 of the neck), the half - spinal 

 muscle of the neck, thicker than 

 the preceding. 



semi-tendinosus, a., t&m'-i-tZnd'-tn' 

 oz'us (L. semi, half ; tendo, I 

 stretch), half-tendinous ; one of 

 the dorsal muscles of the thigh, 

 which arises from the tuber ischii, 

 and is inserted in the tibia. 



Sempervivum, n..,sem'-per-viv'>um 

 (L. semper, always; vivo, I live), 

 a genus of plants, Ord. Crassul- 

 aceje so named from the well- 

 known tenacity of life of the 

 house-leek, one of the species : 

 Sempervivum tectorum, Mlc-torl 

 um (L. tectum, a house, tectorum, 

 of houses), the common house- 

 leek, having thick fleshy leaves 

 arranged in the form of a double 

 rose, commonly met with on the 

 tops of out-houses and cottages, 

 said to possess cooling properties ; 

 S. glutinosunij gldt'm>oz'um (L. 

 glutinosus, gluey from gluten, 

 glue), a species whose fresh leaves 

 are employed by the fishermen of 

 Madeira to rub their nets with, 

 after being steeped in an alkaline 

 liquor, thus rendering them as 

 durable as if tanned : S. caespit- 

 osus, ses f 'pit-6z f 'US (of or pert, to 

 a turf from ccespes> a turf, a sod 

 cut out), a species which exhibits 

 a wonderful vitality, growing 

 after being kept dry for eighteen 

 months. 



Senecio, n., s^w-e'sM-o (L. senex, 

 an old man), a genus of plants, 

 Ord. Composites, remarkable as 

 being the most extensive in point 

 of species in the vegetable king- 

 dom, so named from their naked 

 receptacle resembling a bald head : 

 Senecio vulgaris, vulg-dr f >is (L. 

 vulgdris, common, vulgar), the 

 plant groundsel : S. Jacobsea, 

 jak'-ob-ef-a (from L. Jacobus, 

 James), the ragwort or ragweed : 



S. cineraria, sm^r-ar'-i'd (L. 

 cin$res, ashes, from the soft 

 white down on its leaves), extens- 

 ively used in planting flower- 

 beds for the sake of contrast 

 also called S. maritima, raar*$' 

 im-d (L. maritimus, of or belong- 

 ing to the sea from mare 1 , the 

 sea). 



Senega, or snake root ; see ' Polyg- 

 alacese. ' 



Senna, see under ' Cassia. ' 



sensorium, n., sens-or'-i-um (L. 

 sensus, perception from sentlo, 

 I discern by the senses), the 

 central seat of sensation, or of 

 consciousness, supposed to be in 

 the brain ; the organ which 

 receives the impressions made on 

 the senses : sensorial, a., s&m* 

 dr'-i'cil, of or pert, to the sensor- 

 ium : sensory, a., sens'-dr-i, hav- 

 ing direct connection with the 

 nerves of sensation: n,, in anat., 

 those parts of the neural axis 

 with which the sensory nerves 

 are connected. 



sepal, n., s&p'-al (a term invented 

 by the change of the pet in Gr. 

 petalon into sep, thus making 

 sepalon; L. sepes, a hedge or 

 fence), in bot., one of the leaf- 

 like divisions of the calyx or cup 

 which encloses the corolla or 

 blossom of a flower: sepaloid, 

 a., sep'-al'dyd (Gr. eidos, resem- 

 blance), having the appearance of 

 a sepal: sepalody, n., sVp-al'-od'i 

 (Gr. hSdos, a way), the conversion 

 of petals, or parts of the flower, 

 into sepals. 



sepiostare, n., s$p'i> os>tar' , also 

 sepiostarium, n., s&p f 'i-os>tar'4> 

 Urn (Gr. sepia, the cuttle-fish ; 

 tistZon, a bone), the internal shell 

 of the Sepia, usually called the 

 cuttle-bone. 



septa, and septate, see ' septum. * 



septemfid, a., s&p'-ttm-fid (L. sep- 

 tem, seven ; fidi, I cleft), in bot., 

 having seven divisions in a leaf, 

 extending about half-way through 

 it: septempartite, a., sep'-tZrn- 



