aquamarine 
aquamarine (a''kvva-ma-ren'), . [< L. aqua 
marina, sea-water: see aqua, marine, and aiijnr- 
marinc.] 1. The finest beryl: so 
called from its bluish or sea-green 
tint. Hence 2. A bluish-green 
color resembling that of the finest 
beryl. 
aqua-meter (;l'kwa-me"ter), . [< 
L. aqua, water, 4- meter.] Same 
as pulxnnirtcr. 
aquapult (a'kvva-pult), n. [< L. 
aqua, water, + -/nilt, as in cata- 
liult.] A small portable force- 
pump. 
aquapunctur e ( a - kwa - pungk ' - 
tur), . [< L. aqua, water, + LL. A 
punctttro, puncture.] A form of 
counter-irritation consisting in the forcible pro- 
jection of a very fine stream of water against 
the skin. The stream, which comes from a powerful 
, 
force-pump, reddens iiml blisters the part to which it is 
applied. It is used especially in neuralgia and 
of the spinal cord. Also called douche filiforme. 
aquarelle (ak-wa-rel'), . [F., < It, aoqucrella, 
water-color, light rain, acquerello, water-color, 
thin wine, dim. of acqua (= F. eau), < L. aqua, 
water: see aqua.] Water-color painting, or a 
painting in water-colors. 
They [Frenchmen] despised it [water-color] when it was 
called aquarelle ; they bowed down to it when it was called 
peinture ti lafresqiie. Hamerton, Graphic Arts, p. 340. 
aquarellist (ak-wa-rel'ist), n. [< aquarelle + 
-int.] An artist who works in water-colors ; a 
water-color painter. 
aquaria, . Plural of aquarium. 
aquarian (a-kwa'ri-an), a. and n. [< "L.aquarius, 
pertaining to water (see Aquarius), + -an."] I. 
a. Of or pertaining to an aquarium. [Bare.] 
jv. E. D. 
II. n. [cop.] [< ML. Aquarii, pi., the Aqua- 
rians, < L. aquarius : see Aquarius.] One who 
used water instead of wine in the eucharist : a 
term applied to certain Christians in Africa 
about the middle of the third century, who, while 
it was still customary to celebrate the Lord's 
supper twice a day, though employing wine at 
the evening eucharist, substituted water for it 
in the morning in order that the odor of wine 
might not betray them during the day. They are 
often confounded with earlier followers of the ascetic 
Tatian in Syria, called Hydroparastatse, or Water-drink- 
ers, and reckoned among the Encratites, who used water in 
place of wine at the eucharist, because they held the latter 
to be sinful, regarding it as the evil principle or blood of 
the devil. 
aquariculture (a"kwa-ri-kurtur), n. [< L. 
aquarium + cultura, culture.] The culture of 
aquatic plants in aquariums ; the management 
of an aquarium. 
aquarium (a-kwa'ri-um), n. ; pi. aquariums, 
aquaria (-umz, -ft). [L., a watering-place for 
cattle, neut. of aquarius: see Aquarius.] 1. 
An artificial pond, cistern, or place in a garden 
or elsewhere for cultivating aquatic plants. 
2. A vessel or series of vessels, constructed 
chiefly of glass, filled with either fresh or salt 
water ; and supplied with plants, rocks, etc., 
in which living aquatic animals are kept. Many 
aquariums on a large scale are maintained in connection 
with public parks or gardens, or as distinct institutions. 
Also called aquavivarium. 
Aquarius. 
Aquarius (a-kwa'ri-us), n. [L., a water-bearer, 
one of the signs of the zodiac (Gr. iidpoxhf, i. e., 
284 
water-pourer) ; prop, adj., pertaining to water, 
< aqua, water: see aqua.'] 1. A zodiacal con- 
stellation, supposed to represent a man stand- 
ing with his left hand extended upward, and 
with his right pouring out of a vase a stream 
of water which flows into the mouth of the 
Southern Fish. It contains no star brighter 
than the third magnitude. 2. The Water- 
bearer; the eleventh sign (marked ^) of the 
zodiac, which the sun enters about the '21st of 
January: so called from the constellation. 
aquarter (a-kwor'ter), jirrjt.jilu: as atlr. [< a s 
+ quarter.] Naut., on the quarter; 45 abaft 
the beam. 
a quartieri (a kwar-te-a'ri). [It. : a (< L. ad), 
to, with; quartieri, pi. of quartiere, a quarter, 
compartment: see quarter.] In cerani., (deco- 
rated) in compartments: said especially of any- 
thing circular, such as a shield, the rim of a 
round dish, or the like, which is divided into 
panels or compartments by radiating lines. 
aquatic (a-kwat'ik), a. and w. [< L. aquaticus, 
<aqua, water: see aqua.] I. a. 1. Pertain- 
ing to water; watery. 2. Living in or fre- 
quenting water: as, aquatic animals; aquatio 
plants. 3. Practised on or in water: as, aquatic 
sports Aquatic birds, in ornith., specifically, Aw 
aquaticce, the members of the old orders Grallatores and 
Natatores; the wading and swimming birds, taken to- 
gether. Aquatic box. an accessory to the microscope, 
generally in the form of a glass cell, in which algse or ani- 
malcules are placed for observation. 
II. n. 1. A plant which grows in water. 2. 
1>1. Sports or exercises practised on or in water, 
as rowing or swimming. 
aquatical (a-kwat'i-kal), a. Same as aquatic. 
[Rare.] 
aquatilet (ak'wa-til), a. and n. [=F. aquatile, 
s L. aquatilig, living or growing in or near wa- 
ter, < aqua, water : see aqua.] I. a. Inhabiting 
water. 
The aquatile or water frog. Sir T. Browne, Vulg. Err. 
II. n. An aquatic animal or plant. 
Aquatilia (ak-wa-til'i-a), n. pi. [NL., neut. pi. 
of L. aquatilis, living in the water: see aquatile.] 
In Fieber's system of classification, a subsec- 
tion of heteropterpus insects, including genuine 
aquatic species with concealed antennae, as dis- 
tinguished from those of the section Litoralia. 
aquatint (a'kwa-tint), n. and a. [= F. aqua- 
tinte, aqua-tinta, < It. acqua tinta, lit. dyed wa- 
ter : acqua, water (see aqua) ; tinta, fern, of Unto 
(< L. tinctus), pp. of tingere, timiere, < L. tingere, 
tint, tinge: see tint, tinge.] I. n. 1. An etch- 
ing process by which prints imitating the broad 
flat tints of India ink, bister, or sepia drawings 
are produced. It was practised by the Abb(S St. Non 
in the eighteenth century, and was perfected by Jean Bap- 
tiste Le Prince (1733-1781). In the aquatint process spaces 
are bitten, instead of lines as in etching (which see). 
2. An engraving executed by the aquatint pro- 
cess. 
Also aquatinta. 
II. a. Pertaining to this method of etching. 
aquatint (a'kwa-tint), v.t. [< aquatint, n.] To 
etch in aquatint. 
aquatinta (a'kwa-tin'ta), . Same as aquatint. 
aquatinter (a'kwa-tin"ter), n. One who prac- 
tises the art of aquatinting. 
aquatinting (a'kwa-tin"ting), n. [Verbal n. 
of aquatint.] The art or process of etching 
in the aquatint method. See aquatint. 
aquavivarium (a"kwa-vi-va'ri-um), . ; pi. 
aquaviuaria (-a). [< L. aqua, water, + viva- 
rium, q. v.] Same as aquarium, 2. 
aqueduct (ak'we-dukt), n. [Early mod. E. also 
aquteduct; = F. aqueduc, OF. aqueduct, < L. 
aquceductus, prop, separated, aqua; ductus, a 
conveyance of water: aqua;, gen. of aqua, wa- 
ter; ductus, conveyance, pipe, canal, < ducere, 
lead, convey: see aqua and duct.] 1. A con- 
duit or channel for conducting water from one 
place to another. More particularly applied to struc- 
tures of masonry and tunneling for the conducting of 
water from distant sources to large cities through tubular 
conduits. Aqueducts were extensively used in the Roman 
empire, and many of these ancient structures still remain. 
They were constructed of stone or wood, sometimes tun- 
neled through hills and carried over valleys and rivers on 
arches, much of the labor upon them being uselessly ex- 
pended, from a mistaken idea of the necessity of a per- 
fectly level course. The aqueduct of Segovia, originally 
built by the Romans, has 159 arches, is in some parts built 
in two tiers 100 feet or more in height, and is an admirable 
monument of ancient engineering. One of the most re- 
markable aqueducts of modern times is that of Marseilles, 
to which city it conveys the waters of the river Durance 
from a distance of about 58 miles, of which 10 miles con- 
sists of tunnels, and a considerable portion is traversed by 
means of viaducts of great height and length. This aque- 
duct was built between 1839 and 1847, and supplies water 
in such abundance that the environs of Marseilles, formerly 
Aquila 
Aqueduct of Segovia, Spain. 
extremely arid, have become a garden from the plentiful 
irrigation which is now possible. 
2. In anat., same as aquwductus. 
aqueductus (ak-we-duk'tus), . [NL.] In anat., 
same as aquceductus. 
aqueityt(a-kwe'i-ti), n. [<aque-ous + -ity.] The 
essential principle or quality of water ; wateri- 
ness; aqueousness. 
Tlie aqueity, 
Terreity, and sulphureity 
Shall run together again, and all be annulled. 
B. Jonson, Alchemist, ii. 1. 
aqueous (a'kwe-us), a. [< L. as if *aqueus, < 
aqua, water : see aqua.] Of the nature of wa- 
ter; abounding with water; formed by water ; 
watery: as, an aqueous solution Aqueous or 
watery fusion. See fusion. Aqueous humor (of the 
eye), the limpid watery fluid which fills the space be- 
tween the cornea and the crystalline lens in the eye. 
See eye. Aqueous rocks, inyeol., mechanically formed 
rocks, composed of matter deposited by water. Also 
called sedimentary or stratified rocks. Aqueous tint, 
in painting, a nearly colorless tint. Aqueous tissue, 
in bat., epidermal or subepidermal layers of cells tilled 
with clear sap, as in most succulent plants. Aqueous 
vapor, the invisible vapor which, taken from the surface 
of water by evaporation and rising into the atmosphere, 
returns to the earth in the form of rain, dew, and snow. 
aqueousness (a'kwe-us-nes), . [< aqueous + 
-ness.] The quality or state of being aqueous 
or watery ; wateriness. 
aquetta (a-kwet'tii), n. [It., prop, acquetta, 
dim. of acqua, water : see aqua.] A celebrated 
Italian poison, more commonly called aqua To- 
fana (which see, under aqua). 
aquicultural (a-kwe-kul'tur-al), a. [< aquicul- 
ture + -al.] Pertaining to aquiculture. 
By the republication of these foreign papers the [Fish 
Commission] Bulletin becomes a guide to the knowledge 
of what is being done in aquicultural enterprise in ail 
parts of the world. Suture, XXXIII. 38. 
aquiculture (a'kwe-kul-tiir), . [= F. aquicul- 
ture, < L. aqua, water, "+ cultura, culture.] 
Culture of the natural inhabitants of water; 
fish-breeding ; pisciculture. 
aquiferous (a-kwif 'e-rus), a. [< L. aqua, water, 
-t-/em? = E. bear 1 .] Conveying water Aquife- 
rous canals, the channels which traverse the foot or 
other part of many mollusks, as lamellibranchs and odou- 
tophores, opening upon the surface by one end, and at the 
other end, in some cases, emptying into blood-sinuses, thus 
establishing communication between the blood and the 
surrounding water. 
These aquiferous canals, as they have been termed, ap- 
pear, in many cases, to open by their inner ends into the 
blood sinuses. Huxley, Anat. Invert., p. 491. 
aquiform (a'kwi-form), . [< L. aqua, water, 
-f forma, form.] In the f orm of water ; liquid. 
Aquila (ak'wi-lft), n. [L., an eagle, hence the 
legionary standard; prob. fem. of the rare adj. 
m 
The Constellation Aquila. 
aquilus, dark-colored, dun, swarthy; cf. Or. 
a mist, darkness.] 1. In ornith., a genus 
