POX 



1172 



FREBASAL 



which all other mechanisms are derived. P., Sen- 

 sorial, the power of receiving and emitting impulses. 

 P., Sexual, the ability of having sexual intercourse. 

 P., Specific Refractive, a quantity which is constant 

 for every refractive substance, and is found by dividing 

 the index of refraction of the substance, minus one, 

 by the specific gravity of the substance. The quotient 

 multiplied by the molecular weight of the substance 

 gives the refraction equivalent. P., Specific Rota- 

 tory, the amount of rotation of a substance, in degrees 

 of a circle of the plane of polarized light, produced 

 by one gram of the substance dissolved in one c.c. of 

 liquid examined in a column one decimeter long. 



Pox (poks) \_pocks : pi. of Pock\ I. A term applied to 

 several infectious eruptive diseases. 2. Syphilis. P., 

 Ape, an exanthematous disease of West Indian 

 monkeys, observed during smallpox epidemics. P., 

 Bastard. Synonym of Varicella. P., Chicken. See 

 Varicella. P., Cow. See Cow-pox. P., False. 

 Synonym of Varicella. P., French. See Syphilis. 

 P., Gland, P., Glans. Synonyms of Varicella. 

 P., Grease. Synonym of Horse-pox. P., Great. 

 Synonym of Syphilis. P., Horn. See Horn -pox. 

 P., Horse. See Horse-pox. P., Small. See Variola. 



Practice {prak f -tis) [practicare, to practise]. The 

 official duties of a physician or surgeon in his profes- 

 sional work; also, the exercise of these duties. 



Practitioner [prak-tish' '-un-er) [Fr. , practicien ; practi- 

 care, to practise]. One who practises a profession, 

 especially that of medicine. (A badly-formed word.) 

 P., General, one who treats all ailments, in distinc- 

 tion from the specialist, who treats only one or a few 

 diseases, or the diseases of one or a few organs. 



Prae- {pre-) [L.]. A Latin preposition meaning before, 

 used as a prefix to denote position. It places the 

 words with which it is combined in antithesis to those 

 combined with post-. For anglicized words thus begin- 

 ing see Pre-. 



Praebium [pre' '-be-uni) \_prcebere, to furnish]. Dose. 



Praecava ( pre-ka'-vah). See Precava. 



Praecinctum {pre- sink' '-turn). Synonym of Diapkragtn. 



Praecordia {pre-kor r -de-ah). See Precordia. 



Praecornu {pre-kor'-nu). See Precomu. 



Praecuneus {pre-ku-ne'-us). See Precuneus. 



Praeforceps \pre-for'-seps). See Preforceps. 



Praegeniculatum (pre-jen-ik-u-la' '-turn). See Pregen- 

 iculatum. 



Praeglobin [pre-glo f -bin). See Preglobin. 



Praehallux \pre-hal'-uks). See Prehallux. 



Praelabrum \pre-la' '-brum) \_prce, before; labrum, lip: 

 pi. , Prcelabra~\. In biology, the clypeus or epistoma. 



Praemaxilla (pre-maks-il'-ah). See Premaxilla. 



Praemedulla (pre-me-dul'-ah). Synonym of Medulla 

 oblongata. 



Praemose {pre'-moz). See Premose. 



Praenomen ( pre-no' '-men) . See Prenomen. 



Praeoperculum ( pre - -per'- ku - lum) . See Preoper- 

 culum. 



Praepedunculus (pre-pe-dung' '-ku-lus). See Prepe- 

 dunculus. 



Praepelvisternum {pre-pel-vis-ter' -num). See Prepel- 

 visternum. 



Praeperforatus {pre-per-for-a' -tus). See Preperforatus. 



Praeputium {pre-pu'-shc-um). See Prepuce. 



Praescapularis {pre-scap-u-la'-ris). Synonym of Supra- 

 spinatus. 



Praescutum {pre-sku' -turn) [pra, before; scutum, a 

 shield: pi., Prascuta\ In biology, the most anterior 

 of the sclerites, composing the tergal portion of each 

 thoracic segment of an arthropod. 



Praeseminal (pre-sem' '-in-al). See Presemitial. 



Presternum (pre-ster'-num). See Presternum. 



Praevia {pre'-ve-ah) \_pra:, before ; via, a way]. First- 

 coming before. P., Placenta. See Placenta. 



Pragmatagnosia (prag-mat-ag-no' '-ze-ak) [-pdy/w, an 

 object; ayvuaia, want of recognition]. Inability to 

 recognize an object. P., Visual, a term suggested 

 by Dr. John Wyllie for object-blindness. 



Pragmatamnesia {prag-mat-am-ne' -ze-ah) [-. 

 an object; a/nvt/aia, forgetfulness]. Inability to re- 

 member the appearance of an object. P., Visual, a 

 term suggested by Dr. John Wyllie for that mental 

 condition in which there is inability to call up the 

 visual image of an object. 



Prague Method. A method of delivery of the after- 

 coming head. The child's ankles are grasped above 

 the internal malleoli with the right hand. The index 

 finger of the left hand is flexed over one clavicle, and 

 the remaining ringers of the same hand over the other 

 clavicle. Traction directly down is now made with 

 both hands until the perineum is well distended. The 

 right hand then loosens its hold upon the ankles and 

 again grasps higher up the legs, the child's feet 

 being in contact with the back of the right hand. 

 By a circular movement the feet are now raised 

 toward the mother's abdomen, the obstetrician usin^; 

 the left hand, as originally placed, as a fulcrum around 

 which the head moves. 



Prairie (pra'-re) [Fr.]. A meadow. P. Digs. 

 Army Itch. P. Itch, a name given to a combination 

 of pruritus hiemalis and scabies. See Army Itch. 



Pratal {pra'-tal) \_pratum, a meadow]. In biology, 

 inhabiting meadows. Cf. Pascual. 



Pratesi's Reagent. A reagent for the detection of 

 sugar in the urine. It consists of potassium bichro- 

 mate and an alkaline silicate. See Tests, Tabic 



Pravaz's Syringe. A hypodermatic syringe with a long 

 trocar and cannula. 



Praxis {praks'-is). See Practice. 



Pray's Test-letters or Test. A test for astigmatism. 

 consisting of capital letters composed of strokes that 

 run in different directions for each letter. 



Prazmowski, Bacillus of. See Bacteria, Synonymatic 

 Table of. 



Pre-acetabular (pre-as-et-ab'-u-lar)\_prce, before . 

 bulum, acetabulum]. Situated in front of the acetabu- 

 lum. 



Pre-albuminuric {pre-al-bu-min-u' -rik) [pra, before; 

 albumen, albumin ; ovpov, urine]. A condition or 

 symptom coming or occurring before the appearance 

 of albuminuria. 



Pre-anal (pre-a / -nal) [prce, before ; anus, anus]. In 

 biology, situated in front of the anus. 



Pre-aortic {pre-a-or' '-tik) \_pr<c, before; aoprr), aorta]. 

 Situated in front of the aorta. 



Pre-as.eptic {pre-as-ep r -tik) [prcc, before; i, priv.; 

 arjipir, sepsis]. Pertaining to the period before the in- 

 troduction of aseptic surgery. 



Pre-ataxic {pre-at-aks'-ik) \_prce, before; a, priv.; 

 raS-iq, order]. Occurring before ataxia. 



Pre-auditory {pre-aw' -dit-or-e) \_pne, before ; audi re, to 

 hear]. In anatomy, situated in front of the auditory 

 nerve or canal. 



Pre-axal {pre-aks' -at) [pra>, before ; axis, axis] 

 chordal ; placed in front of the axon. 



Pre-axial (pre-ahs<-e-al) [pra, before; axis, 



Situated in front of the axis ; in a limb, situated oath 

 internal or anterior aspect — in the arm, on the ra 

 in the leg, on the tibial side. 



Prebacillary { prc-bas'-il-a-re) \_pnc, before 

 bacillus]. Occurring before the invasion of the 

 by bacilli. 



Prebasal {pre-ba'-zal) [pro*, before; basis,step,\ 

 tal]. In biology, in front of a basal portion. 



