<B>arthrodial, </B>adjective.<DL COMPACT><DD> of or having to do with an arthrodia. <BR> <I>Ex. Arthrodial joints are usually provided with ligaments (Robert Todd).</I> </DL>
<A NAME="arthrodire">
<B>arthrodire, </B>noun.<DL COMPACT><DD> any one of a group of placoderms having jointed necks, whose fossils are commonly found in Devonian rocks but persist into the Permian period. </DL>
<A NAME="arthromere">
<B>arthromere, </B>noun.<DL COMPACT><DD> one of the segments or divisions of the body of a jointed or articulate animal. </DL>
<A NAME="arthropathy">
<B>arthropathy, </B>noun.<DL COMPACT><DD> any joint disease. </DL>
<A NAME="arthroplastic">
<B>arthroplastic, </B>adjective.<DL COMPACT><DD> of or having to do with arthroplasty. </DL>
<A NAME="arthroplasty">
<B>arthroplasty, </B>noun.<DL COMPACT><DD><B> 1. </B>the making of an artificial joint to replace a natural one. <DD><B> 2. </B>surgery performed on a joint. </DL>
<A NAME="arthropod">
<B>arthropod, </B>noun.<DL COMPACT><DD> any one of a large group of invertebrate animals having segmented (jointed) bodies and hollow, jointed legs. The antennae, wings, and legs of arthropods are articulated in pairs. Insects (such as beetles and bees), arachnids (such as spiders and mites), crustaceans (such as lobsters and crabs), and the extinct trilobites are arthropods. </DL>
<A NAME="arthropoda">
<B>Arthropoda, </B>noun pl.<DL COMPACT><DD> the phylum of invertebrates composed of the arthropods. </DL>
<B>arthropodous, </B>adjective.<DL COMPACT><DD> of or having to do with the arthropods. </DL>
<A NAME="arthroscope">
<B>arthroscope, </B>noun.<DL COMPACT><DD> an instrument for examining the interior of a joint. </DL>
<A NAME="arthroscopy">
<B>arthroscopy, </B>noun.<DL COMPACT><DD> examination of the interior of a joint by means of an arthroscope. </DL>
<A NAME="arthrosis">
<B>arthrosis, </B>noun, pl. <B>-ses.</B><DL COMPACT><DD> (Anatomy.) an articulation or suture joining two bones or cartilages. </DL>
<A NAME="arthrospore">
<B>arthrospore, </B>noun.<DL COMPACT><DD> any of several spores in certain fungi and algae, that look like a string of beads, produced by the breaking up, or fission, of a hypha. </DL>
<B>Arthur, </B>noun.<DL COMPACT><DD> a Christian king in medieval and later romances about ancient Britain who gathered about him the famous Knights of the Round Table. The historical person about whom these romances were later spun was probably a British chieftain or the Romano-British general, Aurelius Auriolanus, who, about 500 A.D., successfully halted the Anglo-Saxon conquest for nearly thirty years. </DL>
<A NAME="arthurian">
<B>Arthurian, </B>adjective.<DL COMPACT><DD><B> 1. </B>of King Arthur, his court, and his knights. <BR> <I>Ex. Arthurian legends.</I> <DD><B> 2. </B>of the romances about them. <BR> <I>Ex. an Arthurian scholar.</I> </DL>
<A NAME="artiad">
<B>artiad, </B>noun, adjective.<DL COMPACT><DD><I>noun </I> an atom or element whose valence is expressed by an even number. <DD><I>adj. </I> having the valence expressed by an even number. See also <B>perissad.</B> </DL>
<A NAME="artichoke">
<B>artichoke, </B>noun.<DL COMPACT><DD><B> 1. </B>a plant somewhat like a thistle, with large prickly leaves; globe artichoke. It is a large, vigorous, composite herb, with divided leaves and a flowering head. <DD><B> 2. </B>its flowering head, which is cooked and eaten as a vegetable before it becomes mature. <DD><B> 3. </B><B>=Jerusalem artichoke.</B> </DL>
<A NAME="article">
<B>article, </B>noun, verb, <B>-cled,</B> <B>-cling.</B><DL COMPACT><DD><I>noun </I> <B>1. </B>a part of a magazine, newspaper, or book. <BR> <I>Ex. There is an article on gardening in the newspaper today. An article is a written composition on a special subject, complete in itself.</I> (SYN) essay, piece. <DD><B> 2. </B>a clause in a contract, treaty, or statute. <BR> <I>Ex. When the Constitution of the United States was adopted it had seven articles.</I> (SYN) provision. <DD><B> 3. </B>a particular thing; item (of the class indicated). <BR> <I>Ex. Bread is a main article of food. A desk is an article of furniture.</I> (SYN) object. <DD><B> 4. </B>a piece of goods or property; commodity. <DD><B> 5. </B>(Grammar.) one of the words <I>a, an,</I> or <I>the,</I> as in <I>a book, an egg, the boy,</I> or the corresponding words in certain other languages. <I>A</I> and <I>an</I> are the <B>indefinite articles;</B> <I>the</I> is the <B>definite article.</B> <BR> <I>Ex. One quickly detects a foreigner thru his inaccurate use of the article (New Yorker).</I> <DD><B> 6. </B>one of the separate charges in an accusation or indictment; a count. <DD><B> 7. </B>(Archaic.) a particular item of business; matter; subject. <DD><B> 8. </B>(Archaic.) a point of time; moment. (Abbr:) art. <DD><I>v.t. </I> <B>1. </B>to bind by contract. <BR> <I>Ex. The apprentice was articled to serve the master workman for seven years.</I> <DD><B> 2. </B>to charge; accuse. <DD><I>v.i. </I> to bring charges; make a specific charge or charges (against). </DL>
<A NAME="articleoffaith">
<B>article of faith,</B><DL COMPACT><DD> an essential condition of a belief or creed; basic principle. <BR> <I>Ex. It is an article of faith with virtually every Gibraltarian that he wants to remain separate from Spain (Manchester Guardian Weekly).</I> </DL>
<A NAME="articlesofconfederation">
<B>Articles of Confederation,</B><DL COMPACT><DD> the constitution adopted by the thirteen original states of the United States in 1781. It was replaced by the present Constitution in 1789. </DL>
<A NAME="articulable">
<B>articulable, </B>adjective.<DL COMPACT><DD> that can be articulated. <BR> <I>Ex. specific and articulable facts.</I> </DL>
<A NAME="articulacy">
<B>articulacy, </B>noun.<DL COMPACT><DD> the quality or condition of being articulate; articulateness. <BR> <I>Ex. ... the fast, crisp articulacy of [the actor] John Gielgud (London Times).</I> </DL>
<A NAME="articular">
<B>articular, </B>adjective.<DL COMPACT><DD> of or belonging to the joints. <BR> <I>Ex. Arthritis is an articular disease.</I> </DL>
<A NAME="articulate">
<B>articulate, </B>adjective, verb, <B>-lated,</B> <B>-lating,</B> noun.<DL COMPACT><DD><I>adj. </I> <B>1. </B>spoken in distinct syllables or words. <BR> <I>Ex. A baby cries and gurgles but does not use articulate speech.</I> (SYN) clear, intelligible. <DD><B> 2. </B>able to put one's thoughts into words easily and clearly. <BR> <I>Ex. Julia is the most articulate of the sisters.</I> <DD><B> 3. </B>made up of distinct parts; distinct. <DD><B> 4. </B>having joints; jointed; segmented. The backbone is an articulate structure. <DD><I>v.t. </I> <B>1. </B>to speak distinctly; express in clear sounds and words. <BR> <I>Ex. The speaker was careful to articulate his words so that everyone in the room could understand him.</I> (SYN) enunciate. <DD><B> 2. </B>to unite by joints. <BR> <I>Ex. The two bones are articulated like a hinge.</I> <DD><I>v.i. </I> <B>1. </B>to express oneself in words. <BR> <I>Ex. Radio and television announcers are trained to articulate clearly.</I> (SYN) enunciate. <DD><B> 2. </B>to fit together in a joint. <BR> <I>Ex. After his knee was injured, he was lame because the bones did not articulate well.</I> <DD><I>noun </I> any invertebrate having the body and limbs composed of jointed segments. adv. <B>articulately.</B> noun <B>articulateness.</B> noun <B>articulator.</B> </DL>
<B>articulation, </B>noun.<DL COMPACT><DD><B> 1. </B>the way of speaking; way of pronouncing words and syllables; enunciation. <BR> <I>Ex. If you read aloud more slowly, your articulation will be much clearer.</I> <DD><B> 2. </B>a joint between parts of an animal or plant. <DD><B> 3. </B>the act or manner of connecting by a joint or joints. <BR> <I>Ex. The articulation of the bones of the hand is quite complex.</I> <DD><B> 4. </B>the state of being jointed. <DD><B> 5. </B>(Botany.) <DD><B> a. </B>a joint or place where separation of two parts takes place naturally, such as at the base of a deciduous leafstalk. <DD><B> b. </B>a node or the space between such parts. <DD><B> 6. </B>the portion between two joints or nodes in an animal. </DL>
<A NAME="articulationist">
<B>articulationist, </B>noun.<DL COMPACT><DD> a person who teaches or advocates teaching deaf-mutes to make articulate sounds. </DL>
<A NAME="articulative">
<B>articulative, </B>adjective.<DL COMPACT><DD> having to do with or relating to articulation. </DL>
<A NAME="articulatory">
<B>articulatory, </B>adjective.<DL COMPACT><DD> of or having to do with vocal articulation. <BR> <I>Ex. When we refer to the organs of speech we generally mean those of the articulatory tract from larynx to lips (Simeon Potter).</I> </DL>
<A NAME="artifact">
<B>artifact, </B>noun.<DL COMPACT><DD><B> 1. </B>anything made by human skill or work, especially a tool or weapon. <BR> <I>Ex. Arrowheads and pottery were among the artifacts found at the site of the prehistoric village.</I> <DD><B> 2. </B>(Biology.) something not naturally present in a tissue or cell. <DD><B> 3. </B>a wave recorded in an electroencephalogram that does not originate in the brain. Also, (especially British,) <B>artefact.</B> </DL>
<B>artifactual, </B>adjective.<DL COMPACT><DD> of or having to do with an artifact or artifacts. </DL>
<A NAME="artifice">
<B>artifice, </B>noun.<DL COMPACT><DD><B> 1. </B>a clever device; trick; ruse. <BR> <I>Ex. She will use any artifice to get her own way.</I> (SYN) maneuver, contrivance. <DD><B> 2. </B>trickery; craft. <BR> <I>Ex. His conduct is free from artifice.</I> (SYN) cunning, guile, deception. <DD><B> 3. </B>skill or ingenuity. </DL>
