SEM- 



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SEP- 



half; nympha, a nymph.] A con- 

 dition in development of certain 

 Insects approaching complete meta- 

 morphosis (zool.). 



semiovate (sem'io'vat) a. [L. semi, 

 half; ovum, egg.] Half-oval ; 

 somewhat oval. 



semioviparous (sem'itivlp'arus) a. [L. 

 semi, half; ovum, egg ; parere, to 

 beget] Between oviparous and 

 viviparous, as a Marsupial whose 

 young are very imperfectly de- 

 veloped when born (zool.}. 



semlovoid (sem'io'void) a. [L. semi, 

 half ; ovum, egg ; Gk. eidos, form.] 

 Somewhat ovoid in shape. 



semipalmate (seni'ipal'mat) a. [L. 

 semi, half; palma, palm of the 

 hand.] Having toes webbed half- 

 way down (zool.). 



semiparaslte (sem'ipar'asit) n. [L. 

 semi, half; Gk. parasitos, eating 

 beside another.] A partial parasite, 

 as a plant which derives part only 

 of its nutriment from its host (biol.). 



semipenniform (sem'ipe'n'iform) a. 

 [L. semi, half ; penna, feather ; 

 forma, shape.] Appl. certain 

 muscles bearing some resemblance 

 to the plume of a feather (anat.). 



semipenneable (sem'iper'meabl) a. 

 [L. semi, half ; per, through ; meare, 

 to pass.] Appl. a membrane which 

 does not permit any dissolved sub- 

 stance to pass, although permeable 

 to water (phys.). 



semiplume (sem'iploom) n. [L. semi, 

 half; pluma, feather.] A feather 

 with an ordinary shaft but a downy 

 web (zool.). 



semlpupa (sem'ipu'pa) . [L. semi, 

 half; pupa, a puppet.] A larval 

 stage in the development of certain 

 Insects (zool.). 



semirecondite (sem'irek'ondit) . [L. 

 semi, half ; recondere, to conceal.] 

 Half-concealed, as an insect's head 

 may be by its thorax (zool.). 



semisagittate (sgm'isaj'itat) a. [L. 

 semi, half; sagitta, an arrow.] 

 Shaped like a half arrow-head. 



semisaprophyte (sem'isap'rofit) n. 

 [L. semi, half; Gk. sapros, rotten ; 

 phyton, plant.] A plant partially 

 saprophytic (hot.). 



semispinalis (sgm'Ispina'lis) n. [L. 

 semi, half; spinalis, spinal.] A 



muscle of the back on each side of 

 the spinal column, inserted into 

 transverse and spinous processes 

 continuously (anat.). 



semitendinosus (sem'iten'dinosus) n. 

 [L. semi, half ; tendere, to stretch.] 

 A dorsal muscle of the thigh stretch- 

 ing from the tuber ischii to the tibia 

 (anat.). 



semitendinous (sem'itfin'dinus) a. [L. 

 semi, half; tendere, to stretch.] 

 Half tendinous (anat.). 



semituberous (sem'itu'berus) a. [L. 

 semi, half ; tuber, a hump.] Having 

 somewhat tuberous roots (hot.). 



senescence (senes'ens) n. [L. senescere, 

 to grow old.] Advancing age ; 

 appl. condition of Protozoa after 

 many bipartitions, which condition 

 may be counteracted by conjugation 

 (biol.). 



senility (senil'iti) n. [L. senilis, senile.] 

 Senile derangement ; the vital ex- 

 haustion of Protozoa (dial.). 



sense organ, an organ functional in 

 receiving external stimulation 



sensiferous (sensif'erus) a. [L. sensus, 

 sense ; ferre, to carry.] Receiving 

 or conveying sense impressions ; 

 sensigerous (phys.). 



sensile (sen'sll) a. [L. sensus, sense.] 

 Capable of affecting a sense 

 (Phys.). 



sensitive (sen'sltiv) a. [L. sensus, 

 sense.] Capable of receiving im- 

 pressions from external objects 

 (Phys.). 



sensitive plant, a plant which 

 droops, recoils, or closes at a 

 touch, as Mimosa (hot.). 



sensorial (sgnso'rial) a. [L. sensus, 

 sense.] Pert, the sensorium (phys.). 



sensorium (senso'rium) n. [L. sensus, 

 sense.] The seat of sensation or 

 consciousness, supposed to be the 

 brain ; the entire nervous system 

 (Phys.). 



sensory (sen'sorl) a. [L. sensus, 

 sense.] Having direct connection 

 with any part of the sensorium 

 (Phys.). 



sentient (sen'shient) a. [L. senhre, 

 to feel.] Appl. cells which are 

 sensitive and can perceive (phys.). 



sepal (se'pal) n. [Gk. sepalon, a sepal, 

 on analogy of petalon, a petal ; or 



