ambrotype 
a dark backiug to the face of a thin negative 
On glass. The negative, as seen from behind, thus ap- 
pears as a positive against the hacking. the lights being 
formed by the opaque portions, anil the shadows by the 
backing seen through the more or less transparent por- 
tions. 
ambry (am'bri), n.; pi. ambries (-briz). [In 
actual modern speech only in north. E. dial. 
iiiimry, otherwise only a historical word, spelled 
prop, ambry, but archaistically in various forms 
of the earlier ambery, as ambrey, diimliry, aum- 
brie (with excrescent b as in number, slumber), 
earlier amrie, aumrye, aumrie, aumery, awmery, 
amburbial 
lar) of cchinoderms. Ambulacra! vesicle, a sac situ- ambulant (am'bu-lant). . [= F. ambulant, < 
atedupon the aboral face of an ambulacral ossicle. -Am- \ Jt ambulan(t~)s, ppr. of ambulare, walk, go 
bulacral vessels, the water- vascular channels of the am- - - ff - - 
bulacra. See cut under Echinoidea. 
Another marked peculiarity of the Echinoderm type is 
the general, if not universal, presence of a system of am- 
Imtiifral iv*xel*, consisting of a circular canal around the 
mouth, whence canals usually arise and followthe middle 
line of each of the ambulacral metameres. 
Iluxleij, Anat. Invert., p. 54. 
Circumoral ambulacral vessel, that into which a ra- 
dial canal of the ambulacra! system of vessels opens at 
its oral end. Radial ambulacral vessels, those which jr __. 
radiate from the central or circular vessel which surrounds ambulate 
tne g u u e t. 
about: see 'ambulate.} 1. Walking; moving 
from place to place ; shifting. 
Sold it for 400 francs to an ambulant picture dealer. 
The American, VI. 250. 
Ambulant tobacconists crying their goods. 
X. F. liurtan, Kl-Medinah, p. 259. 
2. In her., walking: said of a beast used as a 
bearing. 3. In pathol., shifting about from 
place to place; ambulatory: as, ambulant edema, 
mbulate (am'bu-lat), v. i. ; pret. and pp. am- 
bulated, ppr. ambulating. [< L. ambulatus, pp. 
of ambulare, walk, go about, perhaps for *am- 
bibulare, < "ambibulus, < ambi-, about (see ambi-\ 
-t- *-bulus, perhaps connected with bitere, betere, 
go: see arbiter. The older E. form is amble, 
q. v.] To walk or move about, or from place 
to place. 
Now Morpheus . . . 
Amused with dreams man's ambulating soul. 
Dr. Wolcot (Peter Pindar). 
almery, almary, almarie, alsoarmorie, <ME. ame- Ambulacraria (am"bu-lak-ra'ri-a), n. pi. 
rie, almarie, also armarie, < OF. almarie, arma- [NL., < ambulacrum + -aria.} 1. A branch or 
rie, later almaire, aumaire, aumoire, armaire, subkiugdom of animals, constituted by the Echi- 
armoire = Pr. armari = Sp. armario = Pg. al- nodermata and Enti-mpncusta, and divided into 
marin (> Hind, almari, > Anglo-Ind. almirah, q. Radiata and Bilateralia, the latter represented 
v. ) = It. armario, armadio = Or. aimer = Bohem. Dv the genus Balanoglossus alone. Metschnikoff. 
armara, almara = Pol. almaryja, olmaryja = gf. [I.e.} The coronal ambulacra of sea-ur- 
Serv. ormar, on/nan = Sloven, almara, ormar, chins. 
omara, < L. armarium (ML. also corruptly al- Ambulacrata (am'bu-lak-ra'ta), n. pi. [NL., 
marram), a closet, chest, or safe for food, cloth- ne ut. pi. of ambulacratus, < ambulacrum.} A ambulation (am-bu-la'shon), . [< L. ambula- 
ing, money, implements, tools, etc., < arma, term applied by E. R. Lankester to a branch of tio(n-), < ambulare, walk: see ambulate.} The 
implements, tools, arms: see arm*, arms, and echinoderms consisting of the Holothuroidea, act of ambulating or walking about, 
cf. armory 1 . Through the form almery the word Echinoidca, and Asteroidea, or sea-cucumbers, ambulative (am'bu-la-tiv), a. [< ambulate + 
was confused with almonry, a place for distrib- sea-urchins, and starfishes, as collectively dis- _i v e.} Having a tendency to walk or advance; 
uting alms, and is sometimes found in that tinguished from the crinoids or Tentaculata wa lking. [Rare.] 
sense.] 1. A place for keeping things ; a store- (which see). ambulator (am'bu-la-tor), . [L., a walker, 
house, storeroom, closet, pantry, cupboard, ambulacriform (am-bu-lak'ri-form), a. [< L. lounger, peddler, <; ambulare, walk : see ambu- 
press, safe, locker, chest. Specifically (a) A ambulacrum + forma, form.] Possessing the late.} 1. One who walks about. 2. An odom- 
place for keeping victuals ; a pantry, cupboard, f orm or appearance of an ambulacrum, 
or meat-safe. ambulacrum (am-bu-la'krum), n. ; pi. ambula- 
cra (-kra). [NL. use of L. ambulacrum, a walk, 
A B 
Hir. Will not any fool take me for a wise man now, seeing 
me draw out of the pit of my treasury this little god with 
his belly full of gold? 
Spun. And this, full of the same meat, out of my am- 
bry f Massinger, Virgin-Martyr, ii. 3. 
(6) In ancient churches, a niche or recess, 
fitted with a door, in the wall near the altar, in 
which the sacred utensils 
were deposited, in the 
"f -- " T larger churches and cathedrals 
jj FH^^MMM r, ambries were very numerous, 
were used for various pur- 
^ 1 1 '..;, poses, and were sometimes 
large enough to be what we 
should now call closets, the 
doors and other parts that 
were seen being usually richly 
carved. Ambries are still used 
in Roman Catholic churches 
as depositories for the conse- 
crated oils. They are some- 
times made portable, in the 
form of a chest or cupboard, 
which is hung near the altar, 
(c) A place for keeping books; a library. 2. 
Same as almonry. [Erroneous use : see etym.] 
ambs-acet, See ambes-ace. 
ambulacra, . Plural of ambulacrum. 
ambulacra! (am-bu-la'kral), a. [(.ambulacrum 
+ -al.} Of or pertaining to an ambulacrum, or 
to the ambulacra, of an echinoderm Ambula- 
cral face, ambulacral aspect, that surface of an 
echinoderm which bears the ambulacra ; corresponding in 
a starfish to the oral axptct, that upon which the creature 
creeps. Ambulacra! groove, a furrow which marks the 
course of an ambulacrum. 
, Church, 
norland. 
[In a starfish! a deep furrow, the ambulacral groove, ambulance (am'bu-lans), n. 
occupies the middle of the oral surface of each ray, and is (formerly hopital ambulant, walking hospital), 
nearly filled by contractile sucker-like pedicels, . . . ap- (ambulant, walking, shifting: see ambulant.} 
parently arranged in four longitudinal series. 
Huxley, Anat. Invert., p. */o. - -* r. - ,, ** ,, 
f th b d f an arm y m lts movements in the field for the 
' by the ambula- purpose of providing speedy assistance to sol- 
cral system, as the five fingers or rays of a starfish. See 
extract under ambulacral vessels and cut under Aftrophy- 
ton. Ambulacral nerve, a nerve which is in relation 
with the ambulacra. 
When the suckers of an ambulacrum [of a starfish] are 
. . . cut away, a longitudinal ridge is seen to lie at the 
bottom of the groove between their bases. This ridge is 
the ambulacral nerve. Followed to the apex of the ray, it 
ends upon the eye and its tentacle ; in the opposite direc- 
tion, it reaches the oral disk. 
Huxley, Anat. Invert., p. 478. 
Ambulacral neural canal, a tube of which the amhu- 
lacral nerve forms the outer wall. Ambulacra! ossicle, 
one of a double row of small hard pieces which come to- 
gether in the ambulacral groove, extending from its sides 
to its middle line. Also called vertebral ossicle. See cut 
under Asteriidce. Ambulacral plate, one of those coro- 
nal plates of a sea-urchin which are perforated to form 
part of an ambulacrum. See cut under ambulacrum. 
In the ordinary Echinus or sea-urchin ... of these 
plates there are twenty principal longitudinal series, con- 
stituting the great mass of the corona; and ten single 
plates, which form a ring around its aboral or apical mar- 
gin. The twenty series of longitudinal plates are disposed 
in ten double series five ambulacral and five interambu- 
lacral. . . . Each ambulacral plate is subdivided by a 
greater or less number of sutures . . . into a correspond- 
ing number of minor plates, . . . called pore plates. 
Huxley, Anat. Invert., p. 486. 
Ambulacral sac, in echinoderms, that portion of the va- 
soperitoneal sac of the embryo which lays the f 
for the whole system of the ambulacral vessels. 
peritoneal and Holothuroidea.- -Ambulacra! 
the water-vascular system (which see, under w 
eter (which see). 3. A name sometimes given 
to the original form of the velocipede. See 
velocipede. 
Ambulatores (am"bu-la-to'rez), n. pi. [NL., 
pi. of L. ambulator: see ambulator.} I. In 
Sundevall's classification of birds, a group of 
corvine birds. Also called Coreiformes and Coli- 
omorphw. 2t. Illiger's name (1811) of a group 
of birds inexactly equivalent to Insessores, or 
to the Linnean Passeres. 
ambulatorial (am"bu-la-to'ri-al), a. [< L. am- 
bulatorius + -al.} Ambulatory. 
ambulatory (am'bu-la-to-ri), a. and n. [< L. 
ambulatorius, < ambulator: see ambulator.} I. 
a. 1. Having the power or faculty of walking ; 
formed or adapted for walking : as, an ambula- 
tory animal. Specifically (a) In ornith., gressorial: 
opposed to saltatory, saltatorial, or leaping, and applied 
to the feet or gait of certain birds or to the birds them- 
selves ; most frequently to the mode of progression by 
moving the feet one after the other, instead of both to- 
gether. As applied to the structure of the feet, ambula- 
tory is sometimes opposed to scansorial, that is, to the 
zygodactyl modification of the feet, (b) In crustaceans, 
insects, etc., performing the office of locomotion : applied 
to those legs or feet of an animal by means of which it 
walks, as distinguished from those limbs which are mod- 
ified, as swimmerets, chelipcds, or maxillipeds. See cut 
under endopodite. 
2. Pertaining to a walk; happening or ob- 
tained during a walk. [Rare.] 
The princes of whom his majesty had an ambulatory 
view in his travels. H'otton. 
S. Accustomed to move from place to place ; 
not stationary : as, an ambulatory court. 
The priesthood . . . before was very ambulatory, and 
dispersed into all families. Jer. Taylor. 
He had been, I imagine, an ambulatory quack doctor, 
for there was no town in England, nor any country in 
Europe, of which he could not give a very particular ac- 
count. Franklin, Autobiog., p. 37. 
4. In law, not fixed; capable of being al- 
tered : as, a will is ambulatory until the death 
of the testator ; the return of a sheriff is am- 
feufatori/ until it is filed. 5. In med. : (a) Shift- 
ing; ambulant: applied to certain morbid af- 
fections when they skip or shift from one place 
to another. (6) Permitting the patient to be 
about : applied to typhoid fever when it does 
not compel the patient to take to his bed. 
II. . ; pi. ambulatories (-riz). Any part of a 
building intended for walking, as the aisles of 
a church, particularly those surrounding the 
choir and apse, or the cloisters of a monastery ; 
any portico or corridor. 
The inscription upon Wilson's gravestone in the eastern 
ambulatory of the little cloisters of Westminster Abbey is 
now very much effaced. X. and Q., 8th ser., X. 455. 
A broad ambulatory extends round the south and east 
ends of the church. J. HI. Neale, Eastern Church, i. 230. 
wheeled wagon constructed for conveying sick ambulet (am'bul), v. i. [< L. ambulare : see 
or wounded persons. Ambulance-wagons are con- amble and ambulate.} To move from place t 
structed to run very easily, and are designed to carry one place. 
or two tiers of stretchers. Some forms are fitted with ambulomancy (am'tau-lo-man'si), n. [< L. 
water-tank, medicine-chest, operating-table, and other ambu i are wa fk (see ambulate), + Gr. uavreia, 
conveniences. City hospital ambulances are light four- n;,^r,ofi , -n/olVincr PTJarp 1 
wheeled wagons, furnished with one or two beds, surgical divination. ] Divination by walking. L^are- J 
appliances, restoratives, etc. Ambulance-cot, a folding amburbial (am-ber bi-al), a. [< L. amourtnalts, 
A, three ambulacral plates of Echinus sfhara. showing sutures 
of the pore-plates of which each ambulacral plate is composed. B, a 
portion of the extent of the petaloid ambulacrum of a clypeastroid. 
alley, < ambulare: see ambulate.} In zool., a 
row, series, or other set of perforations in the 
shell of an echinoderm, as a sea-urchin or star- 
fish, through which are protruded and with- 
drawn the tube-feet or pedicels. Each such row 
or set of holes usually forms a narrow grooved line from 
base to apex of a sea-urchin, and from the center to the 
end of each ray of a starfish, along the oral aspect of the 
body. Each set or radiating series of perforations is an 
ambulacrum, the several rows together being the ambula- 
cra. The usual definition of ambulacra as the perforated 
spaces through which the tube-feet are protruded leaves 
a doubt whether an ambulacrum is not one such perforated 
space. Ambulacra is sometimes used for the tube-feet 
themselves, collectively ; in which case it properly signifies 
several sets or series of tube-feet, not several tube-feet of 
any single row or series. 
The ambulacra present important variations in the three 
divisions of the Echinidea. Huxley, Anat. Invert., p. 489. 
[< F. ambulance 
C ambulant, 
p 475 1. A hospital establishment which accompanies 
diers wounded m battle. ii. A two- or tour- 
United States Army Ambulance. 
