Webster's Dictionary, 1913

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Arsesmart noun Smartweed; water pepper. Dr. Prior.

Arshine (är"shēn) noun [ Russian arshin , of Turkish-Tartar origin; Turk. arshin , arshūn , ell, yard.] A Russian measure of length = 2 ft. 4.246 inches.

Arsine (är"sĭn or -sēn) noun [ From Arsenic .] (Chemistry) A compound of arsenic and hydrogen, AsH 3 , a colorless and exceedingly poisonous gas, having an odor like garlic; arseniureted hydrogen.

Arsis (är"sĭs) noun [ Latin arsis , Greek 'a`rsis a raising or lifting, an elevation of the voice, from a'i`rein to raise or lift up. Its ordinary use is the result of am early misapprehension; originally and properly it denotes the lifting of the hand in beating time, and hence the unaccented part of the rhythm.]
1. (Pros.) (a) That part of a foot where the ictus is put, or which is distinguished from the rest (known as the thesis ) of the foot by a greater stress of voice. Hermann. (b) That elevation of voice now called metrical accentuation , or the rhythmic accent.

» It is uncertain whether the arsis originally consisted in a higher musical tone, greater volume, or longer duration of sound, or in all combined.

2. (Mus.) The elevation of the hand, or that part of the bar at which it is raised, in beating time; the weak or unaccented part of the bar; -- opposed to thesis . Moore.

Arsmetrike (ärz`mĕt"rĭk) noun [ An erroneous form of arithmetic , as if from Latin ars metrica the measuring art.] Arithmetic. [ Obsolete] Chaucer.

Arson (är"s'n; 277) noun [ Old French arson , arsun , from Latin ardere , arsum , to burn.] (Law) The malicious burning of a dwelling house or outhouse of another man, which by the common law is felony; the malicious and voluntary firing of a building or ship. Wharton.

» The definition of this crime is varied by statues in different countries and states. The English law of arson has been considerably modified in the United States; in some of the States it has been materially enlarged, while in others, various degrees of arson have been established, with corresponding punishment. Burrill.

Art (ärt). The second person singular, indicative mode, present tense, of the substantive verb Be ; but formed after the analogy of the plural are , with the ending - t , as in thou shal t , wil t , orig. an ending of the second person sing. pret. Confer Be . Now used only in solemn or poetical style.

Art (ärt) noun [ French art , Latin ars , artis , orig., skill in joining or fitting; probably akin to English arm , aristocrat , article .]
1. The employment of means to accomplish some desired end; the adaptation of things in the natural world to the uses of life; the application of knowledge or power to practical purposes.

Blest with each grace of nature and of art .

2. A system of rules serving to facilitate the performance of certain actions; a system of principles and rules for attaining a desired end; method of doing well some special work; -- often contradistinguished from science or speculative principles; as, the art of building or engraving; the art of war; the art of navigation.

Science is systematized knowledge . . . Art is knowledge made efficient by skill.
J. F. Genung.

3. The systematic application of knowledge or skill in effecting a desired result. Also, an occupation or business requiring such knowledge or skill.

The fishermen can't employ their art with so much success in so troubled a sea.

4. The application of skill to the production of the beautiful by imitation or design, or an occupation in which skill is so employed, as in painting and sculpture; one of the fine arts; as, he prefers art to literature.

5. plural Those branches of learning which are taught in the academical course of colleges; as, master of arts .

In fearless youth we tempt the heights of arts .

Four years spent in the arts (as they are called in colleges) is, perhaps, laying too laborious a foundation.

6. Learning; study; applied knowledge, science, or letters. [ Archaic]

So vast is art , so narrow human wit.

7. Skill, dexterity, or the power of performing certain actions, acquired by experience, study, or observation; knack; as, a man has the art of managing his business to advantage.

8. Skillful plan; device.

They employed every art to soothe . . . the discontented warriors.

9. Cunning; artifice; craft.

Madam, I swear I use no art at all.

Animals practice art when opposed to their superiors in strength.

10. The black art; magic. [ Obsolete] Shak.

Art and part (Scots Law) , share or concern by aiding and abetting a criminal in the perpetration of a crime, whether by advice or by assistance in the execution; complicity.

» The arts are divided into various classes. The useful, mechanical, or industrial arts are those in which the hands and body are more concerned than the mind; as in making clothes and utensils. These are called trades . The fine arts are those which have primarily to do with imagination and taste, and are applied to the production of what is beautiful. They include poetry, music, painting, engraving, sculpture, and architecture; but the term is often confined to painting, sculpture, and architecture. The liberal arts ( artes liberales , the higher arts, which, among the Romans, only freemen were permitted to pursue) were, in the Middle Ages, these seven branches of learning, -- grammar, logic, rhetoric, arithmetic, geometry, music, and astronomy. In modern times the liberal arts include the sciences, philosophy, history, etc., which compose the course of academical or collegiate education. Hence, degrees in the arts ; master and bachelor of arts .

In America, literature and the elegant arts must grow up side by side with the coarser plants of daily necessity.

Syn. -- Science; literature; aptitude; readiness; skill; dexterity; adroitness; contrivance; profession; business; trade; calling; cunning; artifice; duplicity. See Science .

Art union An association for promoting art (esp. the arts of design), and giving encouragement to artists.

Artemia (är*tĕ"mĭ*ȧ) noun [ New Latin , from Greek 'A`rtemis , a Greek goddess.] (Zoology) A genus of phyllopod Crustacea found in salt lakes and brines; the brine shrimp. See Brine shrimp .

Artemisia (ärte"mĭzh"ĭ*ȧ or ärte"mĭsh"ĭ*ȧ) noun [ Latin Artemisia , Greek 'Artemisi`a .] (Botany) A genus of plants including the plants called mugwort, southernwood, and wormwood. Of these A. absinthium , or common wormwood, is well known, and A. tridentata is the sage brush of the Rocky Mountain region.

Arteriac adjective [ Latin arteriacus , Greek .... See Artery .] Of or pertaining to the windpipe.

Arterial adjective [ Confer French artériel .]
1. Of or pertaining to an artery, or the arteries; as, arterial action; the arterial system.

2. Of or pertaining to a main channel (resembling an artery), as a river, canal, or railroad.

Arterial blood , blood which has been changed and vitalized (arterialized) during passage through the lungs.

Arterialization noun (Physiol.) The process of converting venous blood into arterial blood during its passage through the lungs, oxygen being absorbed and carbonic acid evolved; -- called also aëration and hematosis .

Arterialize transitive verb [ imperfect & past participle Arterialized ; present participle & verbal noun Arterializing .] To transform, as the venous blood, into arterial blood by exposure to oxygen in the lungs; to make arterial.

Arteriography noun [ Greek ... + - graphy .] A systematic description of the arteries.

Arteriole noun [ New Latin arteriola , dim. of Latin arteria : confer French artériole .] A small artery.

Arteriology noun [ Greek ... + - logy .] That part of anatomy which treats of arteries.

Arteriosclerosis (är*tē`rĭ*o*skle*rō"sĭs) noun [ Greek 'arthri`a artery + sclerosis .] (Medicine) Abnormal thickening and hardening of the walls of the arteries, esp. of the intima, occurring mostly in old age. -- Ar*te`ri*o*scle*rot"ic adjective

Arteriotomy noun [ Latin arteriotomia , Greek ...; ... + ... a cutting.]
1. (Medicine) The opening of an artery, esp. for bloodletting.

2. That part of anatomy which treats of the dissection of the arteries.

Arteritis noun [ Artery + -etis .] Inflammation of an artery or arteries. Dunglison.

Artery noun ; plural Arteries [ Latin arteria windpipe, artery, Greek ....]
1. The trachea or windpipe. [ Obsolete] "Under the artery , or windpipe, is the mouth of the stomach." Holland.

2. (Anat.) One of the vessels or tubes which carry either venous or arterial blood from the heart. They have tricker and more muscular walls than veins, and are connected with them by capillaries.

» In man and other mammals, the arteries which contain arterialized blood receive it from the left ventricle of the heart through the aorta. See Aorta . The pulmonary artery conveys the venous blood from the right ventricle to the lungs, whence the arterialized blood is returned through the pulmonary veins.

3. Hence: Any continuous or ramified channel of communication; as, arteries of trade or commerce.

Artesian adjective [ French artésien , from Artois in France, where many such wells have been made since the middle of the last century.] Of or pertaining to Artois (anciently called Artesium ), in France.

Artesian wells , wells made by boring into the earth till the instrument reaches water, which, from internal pressure, flows spontaneously like a fountain. They are usually of small diameter and often of great depth.

Artful adjective [ From Art .]
1. Performed with, or characterized by, art or skill. [ Archaic] " Artful strains." " Artful terms." Milton.

2. Artificial; imitative. Addison.

3. Using or exhibiting much art, skill, or contrivance; dexterous; skillful.

He [ was] too artful a writer to set down events in exact historical order.

4. Cunning; disposed to cunning indirectness of dealing; crafty; as, an artful boy. [ The usual sense.]

Artful in speech, in action, and in mind.

The artful revenge of various animals.

Syn. -- Cunning; skillful; adroit; dexterous; crafty; tricky; deceitful; designing. See Cunning .

Artfully adverb In an artful manner; with art or cunning; skillfully; dexterously; craftily.

Artfulness noun The quality of being artful; art; cunning; craft.

Arthen adjective Same as Earthen . [ Obsolete] "An arthen pot." Holland.

Arthritic, Arthritical adjective [ Latin arthriticus , Greek 'arqritiko`s . See Arthritis .]
1. Pertaining to the joints. [ Obsolete] Sir T. Browne.

2. Of or pertaining to arthritis; gouty. Cowper.

Arthritis (är*thrī"tĭs) noun [ Latin , from Greek 'arqri^tis (as if fem. of 'arqri`tis belonging to the joints, sc. no`sos disease) gout, from 'a`rqron a joint.] (Medicine) Any inflammation of the joints, particularly the gout.

Arthrochondritis noun [ New Latin ] (Medicine) Chondritis of a joint.

Arthroderm noun [ Greek 'a`rqron joint + 'derm .] (Zoology) The external covering of an Arthropod.

Arthrodesis noun [ New Latin , from Greek ... joint + ... a binding together.] (Surg.) Surgical fixation of joints.

Arthrodia noun [ New Latin , from Greek ..., from ... well articulated; 'a`rqron a joint + ... shape.] (Anat.) A form of diarthrodial articulation in which the articular surfaces are nearly flat, so that they form only an imperfect ball and socket.

Arthrodial, Arthrodic adjective Of or pertaining to arthrodia.

Arthrodynia noun [ New Latin , from Greek 'a`rqron joint + 'ody`nh pain.] (Medicine) An affection characterized by pain in or about a joint, not dependent upon structural disease.

Arthrodynic adjective Pertaining to arthrodynia, or pain in the joints; rheumatic.

Arthrogastra noun plural [ New Latin , from Greek 'a`rqron joint + ... stomach.] (Zoology) A division of the Arachnida, having the abdomen annulated, including the scorpions, harvestmen, etc.; pedipalpi.

Arthrography noun [ Greek 'a`rqron joint + -graphy .] The description of joints.

Arthrology noun [ Greek 'a`rqron joint + -logy .] That part of anatomy which treats of joints.

Arthromere noun [ Greek 'a`rqron joint + -mere .] (Zoology) One of the body segments of Arthropods. See Arthrostraca . Packard.

Arthropathy noun [ Greek ... joint + ..., ..., to suffer.] (Medicine) Any disease of the joints.

Arthropleura noun [ New Latin , from Greek 'a`rqron joint + ... the side.] (Zoology) The side or limb-bearing portion of an arthromere.

Arthropod noun (Zoology) One of the Arthropoda.

Arthropoda noun plural [ New Latin , from Greek 'a`rqron joint + -poda .] (Zoology) A large division of Articulata, embracing all those that have jointed legs. It includes Insects, Arachnida, Pychnogonida, and Crustacea. -- Ar*throp"o*dal adjective

Arthropomata noun plural [ New Latin , from Greek 'a`rqron joint + ... lid.] (Zoology) One of the orders of Branchiopoda. See Branchiopoda .

Arthrosis noun [ New Latin , from Greek ..., from 'a`rqron joint.] (Anat.) Articulation.

Arthrospore noun [ Greek ... joint + English spore .] (Bacteriol.) A bacterial resting cell, - - formerly considered a spore, but now known to occur even in endosporous bacteria. -- Ar`thro*spor"ic , Ar*thros"po*rous adjective

Arthrostraca noun plural [ New Latin , from Greek 'a`rqron joint + ... a shell.] (Zoology) One of the larger divisions of Crustacea, so called because the thorax and abdomen are both segmented; Tetradecapoda. It includes the Amphipoda and Isopoda.

Arthrotome noun [ Greek ... joint + ... to cut.] (Surg.) A strong scalpel used in the dissection of joints.

Arthrozoic adjective [ Greek 'a`rqron joint + ... animal, from ... an animal.] (Zoology) Of or pertaining to the Articulata; articulate.