PROJECTILE 



1187 



PROMINENTIA 



Projectile {pro-jek' -til) [projicere, to throw before]. 



Anything thrown forward violently. P., Vomiting, 



vomiting sometimes observed in diseases of the 



d ; the material is projected out of the mouth 



to some distance, apparently without nausea. 



Projection { pro-jek' -shun) [projicere, to throw before]. 

 I. The act of throwing forward. 2. A prominence or 

 it extending beyond the level of the surrounding 

 surface. P., Monocular. Synonym of P., L'niocu- 

 P., Ocular. See Ocular. P.-system of Mey- 

 nert. See Meynert. P. -systems. See Meynert. 

 P.. Uniocular, the projection into space of the im- 

 pression of an object made by rays emanating from 

 it and entering one eye. A correct estimate of distance 

 cannot be made by uniocular projection. P. of Visual 

 Impressions, the projection into space of the im- 

 pressions of objects made upon the retina by rays ema- 

 nating from the objects. The ability to do this enables 

 us to locate correctly the position or distance of objects 



; in space. 



>relabial ( pro - la' '- be - al) [pro, before; labium, lip]. 

 Pertaining to the prolabium. 



'rolabium {pro - la'- be - urn) [pro, before ; labium, a 

 lip] . The red exposed part of the lip ; also, the cen- 

 tral prominence of the lip. 



'relapse (pro-laps') [prolabi, to slip down]. The 

 falling forward or downward of a part. P. of the 

 Anus or Rectum, protrusion of the rectal walls be- 

 yond the anus. P., Artificial, the drawing down of 

 a part or organ, as the uterus, for purposes of ex- 

 amination or treatment. P. of the Cord, premature 

 expulsion of the umbilical cord during parturition. 

 P. of the Iris, protrusion of the iris through a corneal 

 wound. P. of the Uterus, protrusion of the womb 

 beyond the vulva. 



Prolapsed (pro-laps/') [prolabi, to fall forward]. In 

 a condition of prolapse. 



Prolapsion (pro-lap' -shun). Synonym of Prolapse. 



I] 



Prolapsus (pro-lap/sus). Synonym of Prolapse. P. 

 ani. prolapse of the rectum. P. cerebri. Synonym 

 ot Encephalocele. P. iridis, prolapse of the iris. P. 

 linguae. Synonym of Macroglossia. P. oculi. Syn- 

 onym of Exophthalmos. P. palpebrae. Synonym of 

 Ptosis. P. placentae, prolapse of the placenta. P. 

 recti, prolapse of the rectum. P. sclerotici, staphy- 

 loma of the sclerotic. P. uteri, prolapse of the uterus. 

 P. uteri completus, complete prolapse of the uterus ; 

 procidentia uteri. P. uvulae. Synonym of Staphyle- 

 dema. P. vaginae, prolapse of the vagina. P. 

 vesicae, prolapse of the bladder, 

 'rotef {pro' -leg) [pro, for; leg]. In biology, a false 

 leg ; a proped ; an abdominal limb of the larvae of 

 insects, 

 •relepsis ( pro - lef - sis) [~p6, before; ?Mfi3avetp, to 

 seize]. The return of a paroxysm before the expected 

 time. 



O roleptic {pro - Up' - tik) [-po, before; ~/au3areiv, to 



. seize], i. Prognostic. 2. Returning before the reg- 



j ular or expected time. 



^leptics ( pro-lep/ -tiks) [-po, before; 7au3dveiv, to 

 seize]. The art of prognosis, 

 'roles (pro'-lez) [L.]. Offspring. 



rolicide (prcZ-lis-id) [proles, offspring; ccedere, to 

 kill]. Feticide or infanticide. 



roliferate (pro-lif ' -er-at) [proles, offspring; ferre, to 

 bear]. To begin ; to generate. 



roliferation ( pro-lif -er-a' -shun) [proliferate ; proles, 

 offspring; ferre, to bear]. Cell-genesis. The con- 

 inued formation and development of cells by mul- 

 tiplication. P., Atrophic, multiplication of the cell- 

 nuclei, with degeneration of the differentiated proto- 



plasm of the peculiar cells of the tissues. It occurs 

 in inflammation and in regeneration. 



Proliferative ( pro-lif -er-a-tiv) [proles, offspring ; ferre, 

 to bear]. Multiplying ; being the seat of cell-prolif- 

 eration. P. Cyst, a cyst in which the lining epithe- 

 lium proliferates and produces projections from the 

 ental surface of the cysts. 



Proliferous {pro-lif -er-us) [proles, offspring ; ferre, 

 to bear]. In biology, producing offspring; develop- 

 ing buds, branches, or generative zooids. P. Cyst, 

 with Vascular Intra-cystic Growths, a cyst, occur- 

 ring in glands, especially the mammary and thyroid, 

 from the ental wall of which spring irregular, usually 

 cauliflower-like growths of a glandular character, 

 which may eventually fill the cyst-cavity, or even 

 break through the cyst- wall. The so-called sero-cystic 

 sarcoma generally belongs to this class of cysts. 



Prolific ( pro-lif ' -ik) [proles, offspring ;facere, to make]. 

 Fruitful ; very fertile. 



Prolification [pro-lif-ik-a'-shun) [prolifcare, produce 

 offspring]. In biology, the development of organs or 

 structures from a part normally ultimate. P. Islands, 

 numerous spots upon the chorionic villi ; thickenings 

 of the nucleated protoplasm of the ectoderm. The 

 " Proliferatiotisinseln " of German authors. 



Proligerous {pro-lif -er-us) [proles, offspring; gerere, 

 to bear]. In biology, germinating ; producing off- 

 spring; specifically applied to the film of infusions as 

 the source of the microorganisms found in the infusion. 

 P. Disc, see Discus proligerus. 



Promala {pro-ma'-lah) [pro, before; mala, jaw]. In 

 biology, the so-called mandibles of the myriopods, 

 homologous with the lacinia of the hexopodous max- 

 illa (Packard), less correctly called protomala. 



Promanus (fro-ma'-nus) [pro, before ; manus, hand]. 

 The thumb. 



Promesoblast {pro-me'-zo-blast) [~po, before; ueaoc, 

 middle ; 3/aaroc, sprout] . The mass of primordial 

 cells which subsequently develop into the mesoblasL 



Prometopia [pro-met-o'-pe-ah) [~po, before ; ueru-ov, 

 forehead]. The anterior portion of the forehead, or 

 the skin covering it. 



Prometopidia ( pro-met-o-pid' -e-ah) [-po, before; ak- 

 - ror, forehead]. Bandages for the forehead. 



Prominence ( prom' -in-ens) [prominere, to jut out]. 

 I. A projection on the surface of a part, especially on 

 a bone. 2. The state of being prominent. 3. Im- 

 portance ; distinction. P., Bony, a prominence on a 

 bone, usually serving as a landmark. P., Doyere's. 

 See Doyere's. P., Genital, an accumulation of cells 

 on the ventral aspect of the embryonic cloaca and from 

 which the generative organs are developed. P., 

 Double, an abnormal prominence at the junction of 

 the first and second sacral vertebrae. P., False. 

 Synonym of P., Double. P., Mental, the triangular 

 eminence projecting forward from the middle of the 

 body of the lower jaw. P., Sacro-vertebral, the 

 promontory of the sacrum. 



Prominentia ( prom-in-en' -she-ah) [L.://., Prominen- 

 tia ] . Synonym of Prominence. P. albicans. Syn- 

 onym of Corpus albicans. P. encephali. Synonym 

 of Corpora quadrigtmina. P. laryngea. Synonym 

 of Pomum adami. P. lentiformis. Synonym of 

 Xucleus, Lenticular. P. natiformis. Synonym of 

 the Kates of the Corpora quadrigemina. P. oculi to- 

 tius. Exophthalmos. P. orbiculares majores. Syn- 

 onym of the .Yates of the Corpora quadrigemina. P. 

 orbiculares minores. Synonym of the Testes of the 

 Corpora quadrigemina . P. semiovalis. Synonym 

 of Olivary Body. P. sphaerica, a cerebral convolu- 

 tion. P. spiralis, a slight prominence on the outer 

 wall of the cochlear duct, containing a small capillary 



