umbery 
umbery (um'bi-r-i), a. [< umber- + -y 1 .] Of 
or pertaining to umber; of the color of umber; 
dkrk-bro wn ; dark; dusky. 
umbilic (um-l>il'ik), n. and a. [< L. umbilirux: 
see umbilici!*.] I. n. In yeom., a point of a sur- 
face where Hut radii of curvature are all equal, 
and u sphere osculates the surface. ThiMmmixT 
of umbllics, real anil imaidnai'y, '"< a surface of the nth 
ordi-r, U >i(10;i2 28tt -I 2-J). With the older geometrical 
writers, ;iu umbilicus is a focus ; anil an umbilic in the 
iii'i'lnn hr'ii-i is :m:il<<^iis t't a focus. Conical ""ifrlUfl, 
u conical p'.int of a surface. 
II. a. Same us umbilical. 
Umbilical (um-bil'i-kal), a. [= F. nmhilirnl = 
S|>. ly. umbilical = li. umbilieale, < NL. *um- 
biliculis (cf. \Ai. umbilicnrix: see uniliilifiir), < L. 
nmbilicnK, navel: see umhilii'iix.] 1. Of or per- 
taining to the umbilicus; umbilic; oraphalic. 
2. Formed or placed like a navel; navel- 
shaped; central. 
The Chapter-house is large, supported as to its arched 
roof by one umbilical pillar. 
Defoe, Tour through Great Britain, IL 386. (Danes.) 
3. Connected through the female Hue of de- 
scent. 
Tin' point Is Interesting, as It relates to the direct lineal 
ancestress in the female line, or what is sometimes termed 
umbilical or uterine ancestress, of Queen Victoria. 
N. and Q., 7th ser., V. 493. 
Umbilical arteries, the continuation of the hypogastric 
arteries In the fetus from the umbilicus to the placenta, 
forming, with the umbilical vein, the most essential part 
of the umbilical cord. These arteries convey venous blood 
from the fetus to be oxygenated In the placenta. See 
urachtf. Umbilical cord, (a) In anat. See cor(ii.and 
cut under uterus, (b) In hot., same as /utricle, 4. Um- 
bilical fissure, hernia, notch. .See the nouns. Um- 
bilical perforation, tin- large open umbilicus of certain 
cephalopoda, as the nautilolds. Umbilical points, in 
ma'h., same as/oci. See focus. Umbilical region. See 
abdominal regions, under abdominal. Umbilical ling, 
the fibrous circumference of the navel, through which 
hernin may protrude. Umbilical sac. Same as umbili- 
cal vesicle. Umbilical veins (paired at first, usually only 
one of them persistent), the veins communicating between 
the placenta and the fetus, along the navel-string, and with- 
in the body of the fetus thence to the liver and venn porto 
and ductus venosus, and consequently between the pla- 
centa and general venous system of the fetus. They con- 
vey arteriali/ed blood from the placenta to the fetus ; at 
birth they are partly cast off with the navel-string, partly 
degenerate into the round ligament of the liver. Umbili- 
cal vesicle. See renicle. Umbilical vessels, in anat. , 
the umbilical arteries and vein or veins : chiefly allantoic 
structures, to be distinguished from the omphalomeseraic 
vessels of the umbilical vesicle. See cute under embryo 
and uterus. 
umbilicar (um-bil'i-kar), n. [< LL. umbilicariti, 
pertaining to the navel, < L. umbilicus, navel : 
see umbilic and umbilicus.'] In math., of or per- 
taining to an umbilic Umbilicar focal conic. 
See focal . Umbllicar focus, a focus having a real plane 
of contact. 
Umbilicaria (um-bil-i-ka'ri-a), n. [NL. (Hoff- 
man), < LL. umbilicariit, umbilical: see umbili- 
car.'] A genus of gymnocarpous lichens, giving 
name to the family Cmbilicariei, natives of tem- 
perate and arctic regions. In times of scarcity some 
of the arctic species are used as food, as U. arctica, the so- 
called famine-bread. See lichen, 1. 
Umbilicariei (um-bil'i-ka-ri'e-i), n. pi. [NL., < 
rmbiliearia.] A family of gymnocarpous par- 
meliaceous lichens, having a horizontal foli- 
aceous blackish-brown coriaceous thallus at- 
tached to the substratum at a single point. 
umbilicate (um-bil'i-kat), a. [< L. umbilicatus, 
navel-shaped, < umbilicus, navel : see umbilicus.] 
1. Shaped like a navel ; resembling a navel, as 
being round and depressed or concave, or as 
being focal or central, as some pit or depres- 
sion; umbilicated; umbiliform. 2. Having 
an umbilicus or umbilicated formation, as a 
shell or a feather, or marks of the sculpture of 
an insect ; pitted, as a pustule. 
umbilicated (um-bU'i-ka-ted), . [< umbilicate 
+ -<W 2 .] Sumo as iimliiliciitr, 
umbilication (um-bil-i-ka'sbon), . [< umbili- 
cate + -ion.] A central navel-like depression, 
like that seen in vesicles of vaccinia or of small- 
pox; also, the condition of having such a de- 
pression. 
umbilicular (um-bi-lik'u-Mr), a. [Appar. in- 
tended for iiHibilirni; < ~L\j."nmbilicaris, pertain- 
ing to the navel: see umbilicar.] Of or per- 
taining to the navel; hence, intensely intro- 
spective, in allusion to Indian mystics alleged 
to attain great sanctity by continuous contem- 
plation of the navel. 
This change in tone . . . I attribute to a great extent to 
the new vistas opened up by the school of evolutionists, 
anil by the writers who have drawn attention on* mere um 
bilicular contemplation, such as Morris. Knssetti. and 
Swinburne. Pup. Sri. Mo., XXII. 513. 
umbilicus (um-bi-li'kus), n. ; pi. umbilici (-si). 
[== F. oiiibilic (also ii'iiiibril) = Sp. ombligo = 
Pg. embiijo = K. umbilii-ii. < L. umbilicus, navel. 
a. Umbilicus of 
nail (tltlix 
Jaftcida). 
65 7.-} 
akin to Or. iift<pa/.6r, navel : see natel, and cf . 
iiiimbleg.] 1. In (unit. andro7., the more or less 
nearly central point in the walls of the abdomen 
where the yolk-bag or umbilical vesicle of tin- 
embryo hangs, or where the navel-string or 
umbilical cord enters the belly ; the navel ; 
the omphalos, with the absorption of the yolk-bag 
or the casting off of the navel-string, the umbilicus re- 
mains as a characteristic mark or scar. In man it Is a 
little round pit or depression. Its center being hollowed 
In by the traction of the umbilical vessels Inside the belly, 
as these degenerate Into nbrous cords passing to the liver 
and to the bladder, forming the round ligament of the 
former and the urachus of the latter vlscus. 
Hence 2. Some navel-like formation; some 
circumscribed depression or elevation ; a sort 
of button, or a place in which a button might 
fit: when elevated instead of depressed, oftener 
called limbo. Specifically - (a) In conch. , a circular and 
more or less centric pit or hollow of the body-whorl of a spi- 
ral shell ; an umbilicated formation. It Is 
well shown in the figure of the snail here- 
with. (6) In ornith. : (1) The little pit 
or depression on the scape of a feather, 
at the junction of the rachls and calamus, 
where the vanes begin to grow. (2) The 
contracted opening at that end of a 
feather which is inserted into the skin. 
These are also known as the superior um- 
bilicus and inferior umbilicii* respective- 
ly, the former being at the top and the lat- 
ter at the bottom of the calamus. 
3. In hot. : (of) [cap.] An old generic name 
(A. P. de Candolle, 1801) for the navelwort, 
Cotyledon Umbilicus, (ft) The part of a seed 
by which it is attached to the placenta; the 
hiliim. See cut under hilum. (c) A depression 
or an elevation about the center of a given sur- 
face. Henslow. 4. In antiq., an ornamented 
or painted ball or boss fastened upon each end 
of the stick on which manuscripts were rolled. 
6. In geom., a term used by the older geome- 
ters as synonymous with focus; in modern 
works, a point in a surface through which all 
lines of curvature pass. 6. The raised cen- 
tral boss of a large plateau or dish, often made 
to fit the hollow foot of the ewer which stands 
upon it and forms one design with the dish. 
umbiliferous (um-bi-lif'e-rus), a. [< L. umbi- 
li(cus), the navel, + ferre = E. bear 1 .] Having 
an umbilicus or navel-like formation. 
umbiliform (um'bi-H-fdrm), a. [< L. umbili- 
(cu#), the navel, + forma, form.] Having the 
form or aspect of the umbilicus; like a navel. 
umblet (um'bl), . An old spelling of humble 3 . 
Religioun umble and trewe also. 
Rom. of the Kose, 1. 6154. 
Umble-pie (um'bl-pi), . Same as humble-pie. 
umblest, >t.l>l. The entrails of a deer: same as 
numbles. 
This day I had a whole doe sent me by Mr. Hozier, which 
Is a fine present, and 1 had the umbles of ft for dinner. 
P epys, Diary, III. 301. 
umbo (um'bo), .; pi. umbones (um-bo'nez). 
[NL., < L. umbo(n-), the boss of a shield, any 
boss, knob, projection, also poet, a shield; akin 
to Or. &ufiuv, a boss, elevation, pulpit (see am- 
bo), and to L. umbilicus, 
Gr. 6//^a/lof , navel : see um- 
bilicus.] 1. The boss of 
a shield, central in the 
case of a circular shield. 
The umbowas sometimes hollow, 
convex toward the outer side and 
within allowing the hand to pass 
Into theliollow and grasp a trans- 
verse bar ; this form occurs es- 
pecially in small round shields 
(see buckler): sometimes the um- 
bo terminated in a spike which 
was a formidable weapon of of- 
fense. 
2. A boss or knob. (a)In(xrf., 
the knob in the center of the pi- 
leus or cap of an agaricoid fun- 
gus, (ft) In zool., a small circum- 
scribed protuberance or convex 
umbilicus ; a button-like forma- 
tion. Specifically (l)IneoncA., 
the beak of a bivalve shell ; the 
protuberance of each valve above the hinge. The umbo 
represents the apex of a conofdal figure, and Is usually a 
mere protuberance; sometimes, however, it Is greatly 
prolonged Into a kind of horn, which may even be twisted 
or spirally turned. See i-uts under dimyarian, Plicatula, 
and MytUitit. (2) In echiuoderms, a pore-plate: one of 
the little elevated ambulacral plates or pieces which are 
perforated for the passage of pedicels or tube-feet See cut 
under ambulacntm. (8) In entom., one of certain movable 
bosses, each surmounted by a spine, on the prothorax 
of some beetles, as of the genus Macropus, of Acrocinus 
lonffimanus, etc. Kirby and Spence. (c) In anat.. a promi- 
nence of the tympanic membrane, or drum of the ear, at 
the point where the handle of the malleus Is attached, 
umbonal (um'bo-nal), a. [< L. umbo(n-), a boss, 
knob, + -(?/.] 'Protuberant, like a knob, boss, 
or nmbo ; umbonic ; umbonate : as, an umbonal 
formation Umbonal area or region, in conch., a part 
umbrage 
of each valve of a hi valve toward the uml>oaml within tin 1 
pallia! line ; that part of the shell which Is delimited by 
the mantle-margin. 
umbonate (uin'bo-niit), n. [< XL. *umbonatug,< 
\j. iiinlHi(n-), a boss, knob.] 1. Having a boss or 
umbo, as a shield or dink of any sort. 2. In 
'i'iL: (a) Formed into an umbo, a boss, or a 
knob; button-like; umbonal; umbonic. (6) 
Having an umbo, as a shell ; bearing umbones 
of this or that kind; umbonated: as, both valves 
strongly umbonate. 3. In hot., bearing an umbo 
or boss in the center, as the pileus of many 
species of Atiarii-Hx. 
umbonated (uin'bo-na-ted), a. [< umbonate + 
-<-(P.] Same as umboimti: 
umbonation (um-bo-na'shon), n. [< umlm- 
uutr + -ion.] The formation of an umbo; an 
umbo. 
Simple or forked spines, hair-like processes, umbmta- 
Kont, etc. //. C. Wood, Fresh- Water Algoc, p. 101. 
umbones, M. Plural of umbo. 
umbonic (um-bon'ik), a. (XL. umbo(u-), a boss, 
knob, -f -ic.] Of or pertaining to an umbo; 
umbonal. Huxley, Anat. Invert., p. 406. 
umbonulate (um-bon'u-lt), a. [< NL. "umbo- 
nulux. dim. of L. umbo(n-), a boss, knob: see 
umbo.] In hot., terminated by a very small boss 
or umbo. 
umbra 1 (um'brS), . ; pi. umbree (-bre). [NL., 
< L. umbra, shade, shadow : see umberi, umber 2 . 
Hence ult. umbel, umbrel, umbrella, umbrere, 
/ii'iiuinbra, adumbrate, etc.] 1. A shadow or 
shade. Specifically, In astron. : (a) The total shadow of 
the earth or moon In an eclipse ; the dark cone piojected 
from a planet or satellite on the side opposite to the sun. 
See penumbra (with cut). (6) The dark central part of a 
sun-spot, which is surrounded by a brighter annular part 
called the penumbra. See cut under sun-spot. 
2. Among the Romans, one who went to a feast 
merely at the solicitation of one invited : so 
called because he followed the guest as a 
shadow. 3. In nig., a symbol which, when 
paired with another, makes the symbol of a 
quantity. See untbral notation, under umbral. 
Umbra recta, twelve times the cotangent of an angle ; 
umbra versa, twelve times the tangent of an angle. 
These terms are derived from dialing, and refer to two 
scales upon an astrolabe. 
Umbra 2 (um'bra), H. [NL. (Gronovius; Cuvier 
and Valenciennes, 1846), < L. umbra, a fish, the 
umber: see umber 1 .] 1. The only genus of Vm- 
bridie; the mud-minnows. See minnow- 2 (c), 
<. Umbo on Kondache 
Shield of the Carlovingian 
period. (From Viollet.le- 
Duc's "Diet, du Mobilier 
franca is.") 
and Umbridee. There are two species, respec- 
tively of Europe and North America, I', kra- 
meri and I', limi. 2. [/. <.] A scitenoid fish, 
/ 'mbrina cirrosa ; the umbrine. See cut under 
I'mbrina. 
unbraced (um'brast), a. [Appar. an error for 
or misreading of vambraced.] In her., same as 
raiitbraced. 
umbraclet (um'bra-kl), n. [< L. umbraculum, 
anything that furnishes shade, a shade, shady 
place, umbrella, dim. of umbra, shade: see um- 
bra.] A shade ; umbrage. 
That Tree (that SoDll-refreshlng umbrade 
Together with ouralnne) His Shoulders teares. 
Danes, Holy Roode, p. IS. 
umbracula, . Plural of umbraculum. 
umbraculate (um-brak'u-lat), a. [< NL. "um- 
braculatus, < L. umbraculum, umbrella: see um- 
bracle.] In entom., noting the head when near- 
ly covered by a frontal process which falls over 
the face and eyes, shading it like an umbrella, 
as in a few Orthoptera. 
umbraculiferous (um-brak-u-lif'e-rus), a. [< 
L. umbrafiiltini, umbrella, + ferre = E. bear 1 .] 
In bot., bearing an organ or part in the form of 
an expanded umbrella. See cut under pitcher- 
/ilitnt. 
umbraculiform (um-brak'u-li-form), . K L. 
Hiitbrafiilum, umbrella, + forma, form.] Hav- 
ing the general form of an umbrella, as a mush- 
room. See cut under Aijarieux. 
umbraculum (um-brak'u-lum), .; pi. tiiiibracti- 
la(-\&). [NL., < L. umbraculiim. umbrella: see 
umbrade.] In l>ot., any one of certain umbrel- 
la-shaped appendages. See cut under pitcher- 
jilnnt. 
umbrae, . Plural of umbra. 
umbrage (um'braj), . [< F. ombriiije, shade, 
shadow, < L. umbraticua, of or pertaining to 
shade, being in retirement, < umbra, shade, 
