pelu 
4366 
ro11 
,,!,< titrapteru, yar. MvcnabMna, of southein 
Chili and Patagonia. Its wood is very hard and 
durable, and much used for wheel-cogs and 
similar objects 
peludo (pe-lu'do), x, [< Sp. peZiwto, hairy, < 
, < L. 
hair: 
l'vi-iorm), . [< L. pelvis, a basin 
+ fonm & rm j i/ Openly cup- 
pateriform ; resembling a pelvis in 
figure. 2. In lot., shaped like a shallow cup 
, . 
- pelvimeter (pe l-vim'e-ter), . [< NL. 
u- 
, . 
/,,, the hairy armadillo, one of the encou- lv + Grpo>., a measure.] An instru- 
berts or dasypodmes, common on the pampas l | measuring the diameters of the pelvis. 
of the Argentine Republic and in Chili, it is _ ol ._,-*,_, /] vfm'pt ri) IX NL oetefe 
not strictly nocturnal, an/does not burrow, but is found pelVimetry (pel-Vim et-n;, n. \\ iN ^-/ C r> 
on dry plains, and is carnivorous ; its Hesb is lat, and is pelvis, + Gr. -fierpia, < fierpov, measure.] The 
food. The peludo is about 14 inches long, method or practice of measuring the pelvis ; 
e elliptical ears, a broad muzzle, and long measm . e ment of the pelvis, especially for ob- 
tl hairs as well as 
esteemed as 
and has large , 
tail; the body is covered with bristly hairs as well as , , . 
with the carapace, the bands of which are six or seven in 
number. See cut under armadillo. 
eluret, See pellure. 
. . 
(pe-lu'si-an), a. IX L. I'elusium. < Gr. 
, Pe 
-'- _ 
elusium (see def.).] Of or pertain- 
" 
pelvimyon (pel-vi-mi'on), n. ; pi. pclvimya (-a). 
[NL., < pelvis + myon.1 Any myon of the pel- 
'eiiisiac (pe-lu'si-ak), a. [< L. Pelusiacus, < Pe- vie arch or hip-girdle : distinguished from pec- 
liisium : see Pelusian.] Same as Pelusian. torimyon. 
The five pelmmya discussed are the ambiens and those 
four already handled^ ^ 
[< NL. pelvis, 
, cut.] In 
surg., symphysiotomy. 
L. pelvis, a basin, laver; cf. Gr. irti.v%, 
pelvic (pel'vik), a. [< NL.peMeia, < i,. pelvis, v Oda, a bowl: see petite.] 1. A bony basin 
pelvis: see pelvis.] Of or pertaining to the pel- forming the most inferior or posterior one of 
vis: as, pelvic bones, those composing the pel- t jj e t nree g re at cavities thoracic, abdominal, 
vis; pelvic viscera, those contained in the pel- and pelvic of the trunk of most terrestrial 
vis ; the pelvic inlet or outlet ; the pelvic cavity ; ver tebrates. A perfect pelvis is formed on each side 
pelvic measurement. Anterior pelvic region, the 
region in front of the pelvis. Pelvic ape-neurosis. 
Same as pelvic fascia. Pelvic arch. Same as pelvic 
girdle. Pelvic axis, the axial line of the pelvic cavity, 
It is a curve, concentric with the concavity of the sacrum 
and coccyx, and passes through the central point. Pel- 
Vic canal, the cavity of the true pelvis, as forming a pas- 
sage for the fetus at birth. Pelvic cavity, the cavity in- 
closed by the true pelvis. Pelvic cellulitis, an inflam- 
mation of the areolar tissue surrounding the pelvic organs, 
more especially, in the female, of the areolar tissue in con- 
nection with the uterus and its appendages. Also called 
parametritis. Pelvic diameters, (a) Of the false pel- 
vis : (1) The distance between the internal lips of the iliac 
crests. (2) The distance between the anterior superior 
spines of the ilium, (b) Of the true pelvis : (1) Anteropoi- 
tenor diameter of the brim. Same as conjugate diameter 
of the brim. (2) Anteroposterior diameter of the outlet, the 
distance between the tip of the coccyx and the lower bor- 
der of the symphysis pubis. (3) Bis-iliac diameter, the trans- 
verse diameter of the brim. (4) Bis-ischiatic diameter, the 
transverse diameter of the outlet. (5) Coccypubal diameter. 
Same as tmtermoiterior diameter of the outlet. (6) Conjugate 
diameter of the brim, (a) In anat., the distance between 
the sacral promontory and the upper margin of the sym- 
physis pubis. O) In obstet., the least distance between the 
. 
by the haunch-bones, consisting of ilium, ischium, and 
pubis, meeting in front at the pubic symphysis, and corn- 
pleted behind by the sacrum, with which the iliac bones 
articulate, and by more or fewer coccygeal or caudal ver- 
tebrse. But the pubic symphysis is wanting, as a rule, in 
animals below mammals; there is sometimes an ischiac 
ano i often an iliac symphysis. In any case, a recognizable 
ilium or ischium or pubis, however rudimentary, consti- 
tutes in so far a pelvis. The human pelvis is complete, and 
4) 
Human Pelvis, from the front. 
sacral promontory and the symphysis pubis, measured to 
a point on the symphysis about two fifths of an inch be- 
low the upper margin. (7) Conjugate diameter of the cavity, 
the anteroposterior diameter, measured from the suture 
between the second and third sacral vertebrae to the mid- 
dle of the symphysis pubis. (8) Conjugate diameter of the 
outlet, (a.) The distance between the tip of the coccyx 
and the inferior margin of the symphysis pubis. (3) The 
distance between the sacrococcygeal articulation and the 
inferior margin of the symphysis pubis. (9) Diagonal con- 
jugate diameter of the cavity, the distance between the sub- 
pubic ligament and the sacral promontory, measured in the 
living. (10) Normal conjugate diameter of the cavity, the an- 
teroposterior diameter between the concavity of the third 
sacral vertebra and the upper margin of the symphysis pu- 
bis. (11) Oblique diameter of the brim, the distance between 
the iliopectineal eminence and the sacro-iliac synchondro- 
sis of the opposite side. (12) Oblique diameter of the out- 
let, the distance from the middle of the great sacrosciatic 
ligament to the point of union between the opposite rami 
of pubis and ischium. (IS) Sacrocotyloidean diameter, the 
distance between the sacral promontory and the posterior 
part of the cotyloidean cavity. (14) Transverse diameter 
of the brim, the greatest diameter measured from side to 
side. (15) Transverse diameter of the cavity, the distance 
between the points of the inner surface of the os inno- 
minatum opposite the middle of the acetabula. (16) 
Transverse diameter of the outlet, the distance between 
the tuberosities of the ischium. (17) True conjugate di- 
ameter of the brim. Same as 6 (6), above. Pelvic dia- 
phragm, the muscles forming the floor of the pelvis. 
Pelvic fascia. See fascia. Pelvic girdle. See gir- 
dfei, and cuts under pelvis and epipleura. Pelvic her- 
nia, the protrusion of some part of the pelvic con- 
tents through an abnormal or accidental opening situ- 
ated below the brim of the true pelvis. Pelvic hernise 
are of rare occurrence. The chief ones are known as 
perineal, pudendal, sciatic, and vaginal. Pelvic index, 
the ratio of the anteroposterior diameter of the brim to 
the transverse diameter of the same multiplied by 100. 
Pelvic limb, the limb which is attached to the trunk 
by means of the pelvic arch ; the hind limb or posterior 
extremity, as the leg of man or bird, the hind limb of 
quadruped mammals and reptiles, and the ventral tin of a 
fish. Pelvic peritonitis, a local inflammation of that 
part of the peritoneum surrounding the pelvic organs, 
and especially the uterus and broad ligaments. Also 
called perimetritw. Pelvic plexus, a plexus of sym- 
pathetic nerves, reinforced by branches from the lower 
two or three sacral nerves, situated at the side of the 
rectum, and of the vagina also in the female. It gives 
rise to several secondary plexuses, the more important 
of which are the vesical, hemorrhoidal, cavernous, and 
uterine. Also called inferior hypogastric plexus. Pelvic 
presentation. See presentation. Pelvic region, the 
, crest of ilium; 2, base (uppermosOof sacrum; 3, symphysis pubis ; 
4, acetabulum or socket of thigh-bone ; 5, iliac fossa, a part of the false 
pelvis ; 6, ischium ; 7, obturator foramen ; 8, iliopectineal line, or brim 
of true pelvis. ( Coccyx, not shown, directly behind pubic symphysis.) 
of normal composition, but remarkable for its shortness, 
width, axial curvature, and obliquity with reference to the 
long axis of the body. A perpendicular to the plane of the 
inlet would leave the abdomen at the umbilicus, and a per- 
pendicular to the plane of the outlet would strike the 
promontory of the sacrum. The pelvis is divided into 
true and /< the latter being that part which is above 
the iliopectineal line, the former below the same line, 
which thus represents, in part, the brim or superior strait 
of the true pelvis. The false pelvis is broad and shallow, 
composed, as far as bone is concerned, chiefly by the flar- 
ing iliac fossse, its front wall being made by the lower part 
of the abdominal parietes ; and in the erect attitude the 
mass of abdominal viscera rests largely upon this part of 
the basin. The true pelvis is more contracted, and chiefly 
bony as to its walls. Its inlet or superior plane, cordiform 
in shape, is circumscribed by the pelvic brim, which is 
formed by the iliopectineal crest, completed in front by 
the spine and crest of the pubes, and behind by the curved 
ridge and promontory of the sacrum. The lower plane, or 
outlet, known also as the inferior strait, is bounded by a 
very irregular line of bone, the point of the coccyx being 
Pelvis of Horse (sacrum and coccyx removed), leaving the bones 
representing the "quarter," viewed from left side and behind, i, crest 
of ilium; 2, surface for articulation with sacrum (not shown) to com- 
plete the pelvis ; 3, narrow part of ilium ; 4, acetabulum for hip-joint ; 
5, a small part of right pubis ; 6, ischium. 
in the middle line behind, and the tuberosity of the ischi- 
um on each side ; between which three points the bony 
outlet is deeply emarginated behind, on each side, by 
the great sacrosciatic notch, and in front by the arch of 
the pubes, formed by the conjoined rami of the pubes 
and ischia. In life these notches are largely filled in 
by ligaments (the greater and lesser sacrosciatic liga- 
ments on each side, and the triangular or infrapubic liga- 
ment in front). The obturator membrane also closes in 
Pempherididse 
what would otherwise be ti large vacuity on each side, 
the obturator foramen. The inlet of the pelvis is not 
closed by any structure; but the outlet is floored by the 
levator ani muscle, the skin of the perineum, and asso- 
ciated soft parts. The pelvic cavity contains the lower 
bowel and most of the organs of generation. After pu- 
berty the male and female pelves differ usually to a rec- 
ognizable extent in size and shape ; that of the male being 
more massive and contracted, that of the female lighter 
and more expansive. See also cuts under Catarrhina, Dro- 
meeus, Elephantin/e, Equida, innominatum, ligament, Or- 
nithoscelida, ox, quarter, and sacrarium. 
Hence 2. Some pelviform structure or cup- 
like part, (a) The infundibuliform beginning of the 
ureter, constituting the principal cavity of the kidney, 
into which the pyramids project and the urine flows. See 
cut under kidney, (fo) The lower, basal, or aboral portion 
of the cup or calyx of a crinoid. 
3. [cop.] A genus of mollusks Brim of the 
(true) pelvis, the periphery of the pelvic inlet, separat- 
ing the false from the true pelvis. In man it is formed 
by the top of the pubes in front, the promontory of the sa- 
crum behind, and on each side by the iliopectineal line. 
False pelvis. Sec def. 1. Flat pelvis, a pelvis in which 
the conjugate diameter of the inlet 1 proportionally short. 
Naegele'S pelvis, an obliquely distorted pelvis. Pel- 
vis major, the false pelvis. Pelvis minor, the true pel- 
vis. Roberts's pelvis, a transversely contracted pelvis, 
resulting from ankylosis of the sacro-iliac articulations. 
True pelvis, that part of the pelvic wall and contained 
space which is below (in man) or behind the pelvic brim ; 
the pelvis between the inlet and the outlet: chiefly an 
obstetrical phrase. 
pelvisacral (pel-vi-sa'kral), a. [< NL. pelvis, 
pelvis, + sacrum, sacrum: see sacral."] Of or 
pertaining to the pelvis and the sacrum. 
pelvistemal (pel-vi-ster'nal), a. [< NL.^d- 
vistern-um + -al.'] Having the character of a 
pelvisternum. 
pelvisternum (pel-vi-ster'num), n.; pi. pelvi- 
sterna (-na). [NL., < pelvis, pelvis, + sternum, 
breast-bone.] An inferomedian osseous, car- 
tilaginous, or ligamentous element of the pel- 
vic arch, supposed to correspond to the omo- 
steruum of the pectoral arch : thus, there is a 
bony pelvisternum in edentate mammals, and 
the ischiopubic symphysal cartilage is a pelvi- 
sternum. 
pelycometer (pel-i-kom'e-ter), n. [< Gr. it&.v% 
(TteKvti-), a basin (taken in sense of 'pelvis')) 
+ /jrpov, measure.] A pelvimeter. 
Pelycosauria (peFi-ko-sa'ri-a), n. 'pi. [NL., < 
Gr. Trf Atf (TO?.-), a basin, + oavpof, lizard.] A 
division of reptiles, containing those Thero- 
morpha or Theromora which have the coracoid 
reduced, ribs two-headed, two or three sacral 
vertebrss, the centra generally notochordal, 
and intereentra usually present. They lived 
during the Carboniferous or Permocarbonifer- 
ous epoch. 
pelycosaurian (peFi-ko-sa'ri-an), a. and n. I. 
a. Pertaining to the Pelycosauria, or having 
their characters. 
II. n. One of the Pelycosauria. 
pemblico (pem'bli-ko), n. [Also pemWyco ; ap- 
par. imitative: see first quot.] The dusky shear- 
water or cohoo, Puffinus obscurus. [Bermuda.] 
Another small bird there is ; because she cries PemWyco 
they call her so ; she is seldome seene in the day but when 
she sings, as too oft she doth very clamorously. 
Capt. John Smith, Works, II. 115. 
The PemMieo is seldom seen by day, and by her crying 
foretells Tempests. 
S. Clarice, Four Plantations in America (1670)j p. 22. 
pemmican, pemican (pem'i-kan), n. [Amer. 
Ind.] Originally, a preparation made by the 
North American Indians, consisting of the lean 
parts of venison dried by the Bun or wind, and 
then pounded into a paste, with melted fat, 
and tightly pressed into cakes, a few service- 
berries being sometimes added to improve the 
flavor. It is now made of beef, especially for use in arctic 
expeditions, being an easily preserved food, which keeps for 
a long time and contains the largest amount of nutriment 
in the smallest space. Pemmican is similar in character to 
the tassago of South America and the biltong of southern 
Africa. 
Pemmican is made from the round of beef cut in strips 
and dried, then shredded or mixed with beef tallow and 
currants. Schley and Soley, Rescue of Greely, p. 132. 
Pempelia (pem-pe'li-a), n. [NL. (Hilbner, 
]816), < (?) Gr. 7r/OTvloV, an adj. of uncertain 
sense, an epithet of aged persons.] A genus 
of pyralid moths of the family Pln/cidse, well rep- 
resented both in Europe and in North America. 
P. hammmuli is known in the United States as the apple- 
leaf gjceletonizer, since itslarvte feed upon the parenchyma 
of the leaves of the apple, leaving them skeletons. See 
cut under leaf-tier. 
Pempherididae (pem-fe-rid'i-de), n. pi. [NL., 
< Pemphcris (-id-) + -idte.J A family of acan- 
thopterygian fishes, typified by the genus Pem- 
plieris. The species have an oblong compressed body, 
short dorsal with few spines, long anal, complete ventrals, 
and an air-bladder divided into an anterior and a posterior 
portion. They are inhabitants of the tropical seas, and are 
of small size. 
