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Medical Dictionary


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pterygomandibular (ter′i-go-man-dib′u-lar)
Relating to the pterygoid process and the mandible.

pterygomaxillare (ter′i-go-mak-si-lar′e)
The point where the pterygoid process of the sphenoid bone and the pterygoid process of the maxilla begin to form the pterygomaxillary fissure; the lowest point of the opening is used in cephalometrics.

pterygomaxillary (ter′i-go-mak′si-lar-e)
Relating to the pterygoid process and the maxilla.

pterygopalatine (ter′i-go-pal′a-tin)
Relating to the pterygoid process and the palatine bone.

PTF
Abbreviation for plasma thromboplastin factor.

PTH
Abbreviation for parathyroid hormone; phenylthiohydantoin.

PTHC
Abbreviation for percutaneous transhepatic cholangiography.

pthiriasis (thi-ri′a-sis)
SYN: pediculosis pubis. [G. phtheiriasis, fr. phtheir, a louse] p. pubis presence of crab lice in the pubis and other hairy areas of the trunk, and in the eyelashes of infants and young children.

Pthirus (thi′rus)
A genus of lice (family Pediculidae) formerly grouped in the genus Pediculus. The main species is P. pubis (formerly Pediculus pubis), the crab or pubic louse, a parasite that infests the pubis and neighboring hairy parts of the body. Often incorrectly spelled Phthirus or Phthirius. [irreg. fr. G. phtheir, louse]

PTHrP
Abbreviation for parathyroid hormone-related peptide.

PTK
Acronym for phototherapeutic keratectomy.

PTMA
Abbreviation for phenyltrimethylammonium.

ptomaine (to′man)
An indefinite term applied to poisonous substances, e.g., toxic amines, formed in the decomposition of protein by the decarboxylation of amino acids by bacterial action. SYN: ptomatine. [G. ptoma, a corpse]

ptomainemia (to-ma-ne′me-a)
A condition resulting from the presence of a ptomaine in the circulating blood. [ptomaine + G. haima, blood]

ptomatine (to′ma-ten)
SYN: ptomaine.

ptomatropine (to-mat′ro-pen)
A ptomaine characterized by poisonous properties similar to those of atropine; formed by the action of bacteria in the decarboxylation of amino acids.

ptosed (tozd)
SYN: ptotic.

ptosis, pl .ptoses (to′sis, to′sez)
1. A sinking down or prolapse of an organ. 2. SYN: blepharoptosis. [G. p., a falling] p. adiposa SYN: blepharochalasis. aponeurogenic p. drooping of the eyelid caused by dehiscence of the tendon of the levator muscle. p. sympathetica SYN: Horner syndrome.

-ptosis
A sinking down or prolapse of an organ. [G. ptosis, a falling]

ptotic (tot′ik)
Relating to or marked by ptosis. SYN: ptosed.

6-PTS
Abbreviation for 6-pyruvoyltetrahydropterin synthase.

PTT
Abbreviation for partial thromboplastin time.

PTU
Abbreviation for propylthiouracil.

ptyal-, ptyalo-
The salivary glands, saliva. SEE ALSO: sialo-. [G. ptyalon]

ptyalagogue (ti-al′a-gog)
SYN: sialagogue.

ptyalectasis (ti′a-lek′ta-sis)
SYN: sialectasis. [ptyal- + G. ektasis, a stretching out]

ptyalin (ti′a-lin)
SYN: α-amylase.

ptyalism (ti′al-izm)
SYN: sialorrhea. [G. ptyalismos, spitting]

ptyalocele (ti′a-lo-sel)
SYN: ranula (2) .

ptyalography (ti-a-log′ra-fe)
SYN: sialography.

ptyalolith (ti′a-lo-lith)
SYN: sialolith.

ptyalolithiasis (ti′a-lo-li-thi′a-sis)
SYN: sialolithiasis.

ptyalolithotomy (ti′a-lo-li-thot′o-me)
SYN: sialolithotomy.

ptychotis oil (ti-ko′tis)
SYN: ajowan oil.

ptyocrinous (ti-ok′ri-nus)
Secreting by discharge of the contents of the cell, as in mucous cells. [G. ptyo, to spit out, + krino, to separate]

Pu
Symbol for plutonium.

pubarche (pu-bar′ke)
Onset of puberty, particularly as manifested by the appearance of pubic hair. [puberty + G. arche, beginning]

puberal, pubertal (pu′ber-al, -ber-tal)
Relating to puberty.

puberty (pu′ber-te)
Sequence of events by which a child becomes a young adult, characterized by the beginning of gametogenesis, secretion of gonadal hormones, development of secondary sexual characteristics and reproductive functions; sexual dimorphism is accentuated. In girls, the first signs of p. may be evident at age 8 with the process largely completed by age 16; in boys, p. commonly begins at ages 10–12 and is largely completed by age 18. Ethnic and geographic factors may influence the time at which various events typical of p. occur. [L. pubertas, fr. puber, grown up] delayed p. lack of any signs of p. by age 14 years in either sex. precocious p. condition in which pubertal changes begin at an unexpectedly early age. This can involve the initiation of the normal hypothalamic-pituitary axis changes before the age of 8. Idiopathic is the most common reason. true precocious p. SYN: hyperovarianism.

pubes (pu′bis) [TA]
1. [NA] SYN: pubic hair. 2. SYN: mons pubis. [L. p., the hair on the genitals; the genitals]

pubescence (pu-bes′ens)
1. The approach of the age of puberty or sexual maturity. [L. pubesco, to attain puberty] 2. Presence of downy or fine, short hair. [L. pubes, pubic hair]

pubescent (pu-bes′ent)
Pertaining to pubescence.

pubic (pu′bik)
Relating to the os pubis.

pubiotomy (pu-be-ot′o-me)
Severance of the pubic bone a few centimeters lateral to the symphysis, in order to increase the capacity of a contracted pelvis sufficiently to permit the passage of a living child. [L. pubis, pubic bone, + G. tome, incision]

pubis
The anteroinferior portion of the hip bone, distinct at birth but later becoming fused with the ilium and ischium; it is composed of a body that articulates with its fellow at the symphysis p., and two rami; the superior ramus enters into the formation of the acetabulum, and the inferior ramus fuses with the ramus of the ischium to form the ischiopubic ramus. SYN: os p..

Public Health Service (PHS)
See United States P..

pubo-
Pubic, pubes. [L. pubes]

pubocapsular (pu′bo-kap′soo-lar)
Relating to the pubis and the capsule of the hip joint.

pubococcygeal (pu-bo-kok-sij′e-al)
Relating to the pubis and the coccyx.

pubofemoral (pu′bo-fem′o-ral)
Relating to the os pubis and the femur.

puboprostatic (pu′bo-pros-tat′ik)
Relating to the pubic bone and the prostate.

puborectal (pu′bo-rek′tal)
Relating to the pubic bone and the rectum.

pubovesical (pu′bo-ves′i-kal)
Relating to the pubic bone and the bladder.

Puchtler-Sweat stains
See Puchtler-Sweat stain for basement membranes, Puchtler-Sweat stain for hemoglobin and hemosiderin.

pudenda (pu-den′da)
Plural of pudendum. [L.]

pudendal (pu-den′dal)
Relating to the external genitals. SYN: pudic.

pudendum, pl .pudenda (pu-den′dum, -da) [TA]
The external genitals, especially the female genitals (vulva). Used also in the plural. [L. ntr. of pudendus, particip. adj. of pudeo, to feel ashamed] p. femininum SYN: vulva. p. muliebre obsolete term for vulva.

Pudenz
Robert H., U.S. neurosurgeon, *1911. See Heyer-P. valve.

pudic (pu′dik)
SYN: pudendal. [L. pudicus, modest]

Pudlak
P., 20th century Czech physician. See Hermansky-P. syndrome.

puerpera, pl .puerperae (pu-er′per-a, -per-e)
A woman who has just given birth. [L., fr. puer, child, + pario, to bring forth]

puerperal (pu-er′per-al)
Relating to the puerperium, or period after childbirth. SYN: puerperant (1) .

puerperant (pu-er′per-ant)
1. SYN: puerperal. 2. A puerpera.

puerperium, pl .puerperia (pu-er-per′e-um, -e-a)
Period from the termination of labor to complete involution of the uterus, usually defined as 42 days. [L. childbirth, fr. puer, child, + pario, to bring forth]

Puestow
Charles B., U.S. surgeon, 1902–1973. See P. procedure.

puff (puf)
A short blowing sound heard on auscultation, usually a systolic murmur heard over the heart. SEE ALSO: chromosome puffs. veiled p. a faint pulmonary murmur, simulating the muffled flapping of a cloth in the wind.

puffball (puf′bal)
SYN: Lycoperdon.

Pulex (pu′leks)
A genus of fleas (family Pulicidae, order Siphonaptera). [L. flea] P. cheopis former name for Xenopsylla cheopis. P. fasciatus former name for Nosopsyllus fasciatus. P. irritans the human flea, a common flea that infests humans, many domestic animals (especially swine), and wild mammals and birds; a poor vector of plague. P. penetrans incorrect name for Tunga penetrans. P. serraticeps former name for Ctenocephalides canis.

pulicicide, pulicide (pu-lis′i-sid, pu′li-sid)
A chemical agent destructive to fleas. [L. pulex (pulic-), flea, + caedo, to kill]

pulley (pul′e)
See trochlea. anular p. SYN: anular part of fibrous digital sheath of digits of hand and foot. cruciform p. SYN: cruciform part of fibrous digital sheath. p. of humerus SYN: trochlea of humerus. muscular p. SYN: muscular trochlea. peroneal p. SYN: fibular trochlea of calcaneus. p. of talus SYN: trochlea of the talus.




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