Urolestes 
em Africa is glossy black and white, and 19 Inches long, of 
which thu tall is IS Inches; the wing is only r>J. The re- 
semblance of this shrike to a magpie is striking 
urolithiasis (u'ro-li-thi'a-sis), n. Same as 
litliiitxix (a). 
Urological (u-ro-loj'i-kal), n. [< urolog-y + -ic- 
al.] Of or pertaining to urology. 
urologist (ii-rol'o-jist), n. [< iiiiilni/-!/ + -M<.] 
One who is versed in urology. Lancet, No. :(4:t:t, 
p. 1:216. 
urology (u-rol'o-ji), w. [< Gr. ovpov, urine, + 
-/./;.', < /'}<"') speak: see -nlogy.] Same as 
uromaricy (u'ro-man-si), H. Diagnosis and 
prognosis of disease by inspection of the urine. 
Uromastix (ii-ro-mas'tiks), . [NL. (Merrem), 
< (Jr. ui'/ia, tail, + /inn-ril;, whip, scourge.] A 
genus of agamoid lizards; the thorn-tailed 
agamas, having the tail ringed with spinose 
scales. Several species inhabit Europe, Asia, 
and Africa. Also Maxtigurus. 
uromelanin (u-ro-mel'a-nin), n. K Gr. ovpov, 
A 
6671 
excreting urine; urinific; uriniparous; uroge- 
nourt: noting urinary or uriniparous organs 
or their function: as, the i/c<///</ in- system ; the 
unijioiflii- viscera. The epithet Is applicable not only 
to tin- kidneys, but to associated structures, as the rein- 
portal venous system, and also to the representative uri- 
nary organs, often very different, of those animal* which 
have no true kidneys, as the Wolfflan bodies of the lower 
Invertebrates, and the water-vascular system of various 
invertebrates. 
uropsannnus(ii-rop-sam'us), n. Urinary gravel. 
uropsile(u-rop'sil), n. [< I'ropsilus.] 
urotoxic 
urosomatic (u'ro-so-mat Mk), n. [< MI-./ 
(-XIIHIIII-) + -a-.} of or pertaining to the uro- 
some: consisting of urosomites, as the seg- 
ments of a lobster's tail. 
UTOSOme (ii'ro-.som), n. [< Or. m'yxi, tail, + 
auua, body.) In l>it>l.\ (a) The last morpho- 
logical segment of the tail: t lie terminal soma- 
tome of a vertebrate. Met* gi-phynirrrral. (ft) 
The |iost-thoracic region of the body of ar- 
thropods; the abdomen or postabdomeu as dis- 
tinguished from the cephalothorax, and as com- 
o r 
mal of the genus ProMMM. posed of a series of urosomites or uromeres. 
18 (u-rop'si-lus), n. [NL. (A. Milne- rirosomite (ii-ro-so'mit), . [< Or. m>pa, tail, + 
s, 1872), < Gr. ovpa, tail, + juMf, bare, g. ,,,>. \ Our of the. somites, segments, or 
] A genus of terrestrial shrew-moles, rings of the 
'ainil.v Talpida and subfamily Mi/iyi/i- ur osomitic 
ntt. The fore feet are neither fossorial nor natatorial ; . (( . i ( )f or 
there are 2 incisors, 1 canine, 8 premolars, and 3 molars 
In each upper half-Jaw, and 1 Incisor, 1 canine Spre- "" 
uromelus 
[NL.,<Gr.oi>pd,tail, + /ic, alimb.] In (era- pare that under iruiMia 
tol., a monster having the lower limbs united urop ygi a l (u-ro-pij'i-al), a. 
and terminating in a single foot; s^rmpus. -W r . ' 
'- + 
uromere (u'ro-mer), n. [< Gr. ovpd, tail, 
r, part.] 'A caudal or posterior segment of 
uromeric . . 
Of the nature of or pertaining to a uromere. 
urometer (u-rom'e-ter), n. Same as urinometer. 
Uromyces (u-rom'i-sez), n. [NL. (Link, 1816), 
< Gr. oi'ipd, a tail, + uviais, a mushroom.] A ge- 
nus of uredineous fungi, having the teleuto- 
spores separate, unicellular, pedunculate, and 
produced in flat sori. About 180 species have 
been described. 
Uropeltidae (u-ro-pel'ti-de), n. pi. [NL., < Uro- 
peltis + -idte.] 'A family of cylinder-snakes or 
^ - -,. - A shrew- 
like animal of the 
Uropsilus 
Edwards, 
smooth.] A genus of terrestrial shrew-moles, rings of the urosome; a uromere. 
of the family Talpidse and subfamily Afyoijuli- njogomitic (u'ro-so-mit'ik), a. [< 
pertaining to a urosomite; uro- 
motai^anT3"moTarsln'eachlower'^aif-V''V I '''riiety:M, Urospermum (u-ro-sper'mum), n. [NL. (Sco- 
If. torieiprt of Tibet, combines the external form of a poli, 1777), so called from the appendaged 
shrew with cranial characters of a mole. achenes; < Gr. ovpa, tail, + antp/ja, seed.] A 
A suborder of pedi- genug of compog ite plants, of the tribe Ciehoria- 
ctse and subtribe Scorzonerese. It I* distinguished 
the related genus Seononera by an Involucre of a 
) row of bracts and by achenes with a dilated and 
iw beak. The two species are natives of the Mediter- 
ranean region ; one, U. j/teroido, also occurs, perhaps in- 
troduced, In South Africa. They are annuals or biennials, 
hairy or bristly, with radical or alternate deeply cut 
leaves, and yellow flowers sometimes with a spiny In- 
volucre. The Dower-heads become greatly enlarged in 
fruit, terminating long swollen hollow branches; the 
achenes are long and often Incurved, with a long hollow 
appendage or stalk below In addition to the elongated 
beak, which bears a soft plumose pappus. Bee theep'i- 
I lllll|r VM. '/ll'l.-. N Vffffv^, 1 ..ll.|. t p -. JTW. t 
tail), + TVVT;, rump, buttocks.] In ornith., the UTOSteallth (u-ro-ste'a-hth), n. Gr. ovpov 
rump ; the terminal section of the body, repre- urine, -f- orfap, fat, tallow, + //ft*, stone.] A 
sented by the caudal vertebrae, into which the fatty matter occasionally found in urinary con- 
tail-feathers are inserted; also, the upper sur- cretions, but very rarely composing the entire 
face of this part, or terminal section of the no- calculus. It Is saponlflable In caustic potash and 1 solu- 
anm with liniirs tint rtpfinoH See ont under We In alcohol and ether. It burns with a yellow flame, 
Mom, Wltn limiti 60. , evolving an odor of shellac and tenioln, and when un- 
oirrf 1 and elteoaochon. mixed with other matters leaves no residue, 
uropyloric (u'ro-pi-lor'ik), a. [< Gr. ovpa, tail, urostegal (u'ro-ste-gal), n. and n. [< urostege 
+ NL. pylorus : see pyloric.] Of or pertaining + _; J j_ . o'f or pertaining to the urosteges ; 
^ [< uropygium + 
-a/.~]~ "In oriiitli.'ot or pertaining to the uropy- 
gium or rump: as, uropygial feathers Uropy- 
gial gland. See gland, and cut under elttodochmi. 
the body: aurosomite; any abdominal segment uropygium(u-ro-pij'i-um),w.; p\.uropyg>a(-&). 
of an arthropod. See urosome. A. S. Packard. [NL., < Gr. av/mxiyiov, another reading of o/upo- 
iromeric (u-ro-mer'ik), a. [< uromere + -t'c.] irvyum, the rump of birds, < tppof, rump (otyxi, 
to the posterior part of the pyloric division of 
the stomach of certain crustaceans, as the craw- 
being one of the urosteges. 
II. M. A urostege or urostegite. 
Excessive mictu- 
tortricoid ophidians, typified by the genus Uro- ^ 
peltis, having no rudiments of hind limbs, and fish: as, a uropyloric ossicle: correlated with ur ostege (u'ro-stej), . [< fir. oi'pa, tail, + 
the tail of variable character according to the urocardiac. Huxley. 
genus; the roughtails. The family is also called urorrhagia (u-ro-ra'ji-S), n. 
HliiHonhidte. There are 7 genera. rition; diabetes. 
Uropeltis (u-ro-pel'tis), n. [NL. (Cuvier), < urorrhea, urorrhoBa (u-ro-re'a), n 
Gr. oipd, tail, + irifar), a shield.] A genus of tary passage of urine ; enuresis. 
serpents, giving name to the family Uropel- urosacral (u-ro-sa'kral), a. and n. K Gr. avpA, 
I. a. 
Involun- 
tail, + NL. sacrum. "see sacral."] 
Situ- 
art;i/, a roof.'] In hcrpet., one of the large 
special scales or scutes, generally alternating 
or two-rowed, which cover the under side of 
the tail of a snake, as the gastrosteges cover 
the abdomen. The number and disposition of 
the urosteges furnish zoological characters in 
many cases. Compare gastrostege. 
urophaein (u-ro-fa'e-in), n. A pigment-body ated between the sacrum and the coccyx ; of or njostegite (u'ro-ste-iit), n. [< urostege + -ite*.] 
nnntninorl in tlionriiiA tr> thn nrpATicf> nf which bh to the sacrum and to the coccx : 
contained in the uriiie, to the presence of which 
the characteristic odor of this fluid has been 
attributed. 
urophtbisis (u-ro-thi'sis), n. Diabetes melli- 
tus. [Bare.] 
uroplania (u-ro-pla'ni-a), n. [NL., < Gr. ovpov, 
urine, + ff/lovdv, wander: seej>Jae<.] The oc- 
currence or presence of urine anywhere in the 
body where it does not belong. Compare ure- 
mia, uridrosis. 
uroplatoid (u-ro-pla'toid), a. [<NL. Uroplates 
+ -oirf.] Of or pertaining to the Uroplatoidea. 
Uroplatoidea (u*ro-pla-toi'de-a), n.pl. [NL., 
< I'roplates (the type genus) + -oidea.] A 
superfamily of eriglossate lacertilians, repre- 
sented by a family Uroplatida alone, having 
biconcave vertebrse, clavicles not dilated proxi- 
mally, and no postorbital or postfrontal squa- 
pertaining both to the sacrum and to the coccyx : 
One ot the urosteges, or urostegal scales. 
as, the urosacral region. The term is specifically ap- njosteon (fi-ros'te-on), w. [NL., < Gr. ovpa, tail, 
plied to the numerous equivocal vertebrae of the sacrarium 4.;" A rriBaian noitprior osHifica 
of a bird, which are situated between the sacral vertebra: * oartov , bone. J A medi ,n pos 
tion of the sternum of some birds, as Dicnolo- 
phus crintatus, arising from an independent os- 
sific center. W. K. Parker. 
, lro . uroBternite (u-ro-ster'nit), n. [< Gr. otyxS, tail, 
+ E. sternite.] The sternite, or ventral median 
proper and the free caudal or coccygeal vertebra;, and are 
ankylosed with one another, with the last true sacral ver- 
tebra, and to a greater or less extent with the ilia or 
mosal arches. T. Gill, Smithsonian Report, Urosalpinx (u-rQ-sal'pingks), n. [NL. 
Igg5. Stimpson, 1865), < Gr. ovpa, 
sacral region ; any vertebra between the last 
true sacral and the first free caudal. See cuts 
under sacrarium and sacrum. 
urosacrum (u-ro-sa'krum), n. ; pi. urosacra 
(-kra). [NL., <'Gr. ovpa, tail, + NL. sacrum, 
q. v."} That posterior part of a bird's compound 
sacrarium which is formed of urosacral or false 
coccygeal bones ankylosed together and with 
the sacrum proper. See cuts under sacrarium 
and sacrum. 
(W. 
uropod (u'ro-pod), n. [< Gr. ovpa, tail, + irovc; 
(7ro<5-) = B. Jvot.j Any abdominal limb of an 
arthropod ; an appendage of the urosome. A. 
S. Packard. 
Uropoda (u-rop'6-da), n. [NL. (Xiatreille, 
1806): see uropod.] A genus of parasitic mites, 
of the family Gamasidse, having an excremental 
cord of varying length which attaches each in- 
dividual to its nost. They are parasitic upon various ,.,. 
beetles. U. americana is commonly found clustering upon UfOSCOplC (u-ro-8KOp IK), n. 
the Colorado potato-beetle, Doryphora decemlineata. [< uroscop-y + -tc.] Same as 
uropodal (u-rop'o-dal), a. [< uropod + -n/.] 
tail, + oAfartyf, a trumpet.] 
A genus of gastropods, of 
the family Muricidie, having 
a fusiform shell with radi- 
ating undulations or folds. 
U. rintrea, known as the drill or 
borer, U very destructive to oys- 
ters, whose shell it perforates, mak- 
ing a small round hole by means 
of its tongue. Seedrtttl,B. 
urnioscopic. 
Of the character o? a uropod ; pertaining to uroscopist (u'ro-sko-pist), n 
uropods: as, uropodal appendages, 
uropoesis, uropoiesis (u-ro-po-e sis, -poi-e'sis), 
w. 1. The formation of urine; the excretion 
of urine or of its constituents from the blood, 
and its elimination from the body: noting the 
function of the uropoietic organs and its result. 
2. The act of voiding urine; micturition; 
urination. 
Drill or borer (Uriual- 
fin* (tnrrra), en- 
larged one half. 
sclerite, of any somite of the urosome of an 
arthropod. Compare urite. A. S. Packard. 
urosthene (u'ros-then), n. [< Gr. oi'pa, tail, + 
aflfvof, strength.] In rod'?., an animal whose 
greatest strength is in the tail ; an animal whose 
organization is comparatively large and strong 
in the caudal region of the body, as a cetacean 
or a sirenian. 
urosthenic (u-ros-then'ik), a. [< urosthene + 
-i'c.] Strong in the tail, or caudal region of the 
body: said of an animal whose organization pre- 
ponderates in size and strength in the hinder 
part of the body: opposed to prosthenic. 
Urosticte (u-ro-stik'te), n. [NL. (Gould, 1853).] 
A genus of humming-birds, with 2 Ecuadorian 
species, E. bcujamini and E. ruficrissa, of small 
size, 3i inches long, the bill } to J of an inch, 
the tail emarginate, and the gorget luminous 
green with or without a violet spot, the general 
plumage green. They are known as white-tips. 
urostylar (u-ro-sti'lar), a. [< urostyle -f- -at-s.] 
Of the nature of or pertaining to a urostyle : as, 
a urostylar bone or process. 
urostyle (u'ro-stil), . [< Gr. ovpa, tail, + ori'- 
/oc, column : see sfy/c 2 .] A prolongation back- 
ward of the spinal column, especially of the last 
vertebra, in certain fishes and amphibians: in 
One who makes a specialty 
of urinary examinations ; one 
who practises uromancy. 
Actuarlus, the Urotcopitt of the 
Byzantine court, described in the minutest detail the 
visible changes of urine In health and in disease. 
node's Handbook of tied. Science*, VII. 403. 
_ UTOSCOpy (u'ro-sko-pi), n. [< Gr. ovpov, urine, 
uropoietic (u'ro-poi-et'ik), a. [< Gr. owpoi', urine, + -cmma, < onoireiv, view. ] Same as uriiioscopy. UTOtOZlc (u-ro-tok'sik). a. 
-f -o/;/rwdf, doing, < iroiclv, make, do. Cf. cln/lo- urosis (u-ro'sis), n. A disease of the urinary + -rofutov, poison.] if or pertaining to poison- 
poietir.] In aiiat. and physioL, secreting or organs.' ous substances eliminated in the urine. 
some Amphibia forming the greater part of the 
so-called sacrum, or a long bone in the axis of 
the spinal column behind the sacrum proper, 
and approximately coextensive with the length 
of the ilia. 
