<B>Aristotelian, </B>adjective, noun.<DL COMPACT><DD><I>adj. </I> of or having to do with Aristotle or his philosophy. <DD><I>noun </I> <B>1. </B>a follower or student of Aristotle or his philosophy. Aristotle based much of his thinking upon scientific examination from which he formulated the deductive method of reasoning. <DD><B> 2. </B>a person whose reasoning is characterized by an emphasis on the empirical and the particular as opposed to the hypothetical and the general. </DL>
<A NAME="aristotelianism">
<B>Aristotelianism, </B>noun.<DL COMPACT><DD> the philosophic system or any doctrine of Aristotle. </DL>
<B>aristotype, </B>noun.<DL COMPACT><DD><B> 1. </B>a photographic printing process, now obsolete, in which silver salts are used in collodion orgelatin. <DD><B> 2. </B>a print made by such a process. </DL>
<B>arithmetic, </B>noun, adjective.<DL COMPACT><DD><I>noun </I> <B>1. </B>the art or practice of computing or calculating by means of numbers; the science of positive, real numbers; computation. When you study arithmetic you learn to add, subtract, multiply, and divide. Arithmetic also includes involution and extraction of roots. <DD><B> 2. </B>the study of numbers and their relationship; theory of numbers. <DD><B> 3. </B>a textbook or handbook dealing with arithmetic. <DD><B> 4. </B>calculation; planning. <BR> <I>Ex. faulty political arithmetic.</I> <DD><I>adj. </I> <B>=arithmetical.</B> </DL>
<A NAME="arithmetical">
<B>arithmetical, </B>adjective.<DL COMPACT><DD><B> 1. </B>of arithmetic; having to do with arithmetic. <DD><B> 2. </B>according to the rules of arithmetic. adv. <B>arithmetically.</B> </DL>
<A NAME="arithmeticalprogression">
<B>arithmetical progression</B> or <B>series,</B><DL COMPACT><DD> a series of numbers in which there is always the same difference, added or subtracted, between a number and the one next after it. (Examples:) 2, 4, 6, 8, 10 is an arithmetical progression in which 2 is added to each number; 8, 5, 2, -1, is an arithmetical progression in which 3 is subtracted from each number. </DL>
<A NAME="arithmetician">
<B>arithmetician, </B>noun.<DL COMPACT><DD> a person who studies arithmetic. </DL>
<A NAME="arithmetic">
<B>arithmetic</B> or <B>arithmetical mean,</B> <B>=average (def. 1).</B> <I>Ex. If you add together the numbers of all the eggs and divide by ... the number of hens, you will find the arithmetic average or arithmetic mean (Albert E. Waugh).</I> </DL>
<A NAME="arithmeticunit">
<B>arithmetic unit,</B><DL COMPACT><DD> the part of a digital computer in which arithmetical operations are performed. </DL>
<A NAME="arithmetization">
<B>arithmetization, </B>noun.<DL COMPACT><DD> the process of making any part of mathematics depend on purely arithmetical concepts. </DL>
<A NAME="arithmetize">
<B>arithmetize, </B>verb, <B>-tized,</B> <B>-tizing.</B><DL COMPACT><DD><I>v.t. </I> to solve by or state in terms of arithmetic. <BR> <I>Ex. to arithmetize a problem.</I> <DD><I>v.i. </I> (Especially British.) to use arithmetic. </DL>
<A NAME="arithmometer">
<B>arithmometer, </B>noun.<DL COMPACT><DD> an early form of adding machine. </DL>
<A NAME="arivederci">
<B>a rivederci,</B><DL COMPACT><DD> (Italian.) farewell; until we meet again. Also, <B>arrivederci.</B> </DL>
<A NAME="ariz">
<B>Ariz.,</B><DL COMPACT><DD> Arizona. </DL>
<A NAME="arizonan">
<B>Arizonan, </B>adjective, noun.<DL COMPACT><DD><I>adj. </I> of or having to do with Arizona. <DD><I>noun </I> a native or inhabitant of Arizona. </DL>
<A NAME="arizonaruby">
<B>Arizona ruby,</B><DL COMPACT><DD> a garnet resembling a ruby in color; Cape ruby; pyrope. </DL>
<B>arizonite, </B>noun.<DL COMPACT><DD> an igneous rock that is an ore of titanium. </DL>
<A NAME="arjuna">
<B>Arjuna, </B>noun.<DL COMPACT><DD> a warrior, son of Indra and one of the heroes of the <I>Mahabharata</I> in Hindu epic poetry. </DL>
<A NAME="ark">
<B>ark, </B>noun.<DL COMPACT><DD><B> 1a. </B>the large boat in which Noah saved himself, his family, and a pair of each kind of animal, from the Flood (in the Bible, Genesis 6-8). <DD><B> b. </B>(Figurative.) any place of refuge. <DD><B> 2. </B>(U.S.) a large flatboat used to carry freight or as a house in western rivers during the westward movement. <DD><B> 3. </B>(Informal.) <DD><B> a. </B>any large, clumsy boat. <BR> <I>Ex. The barge was a wallowing, leaky old ark.</I> <DD><B> b. </B>any large, clumsy vehicle. <DD><B> c. </B>(U.S.) any large, clumsy dwelling. <DD><B> 4. </B>a cabinet in Jewish synagogues and temples, for housing holy scrolls of the Pentateuch. See also <B>Ark of the Covenant.</B> <DD><B> 5. </B>(Archaic or Dialect.) a chest, box, or basket. </DL>
<A NAME="ark">
<B>Ark.,</B><DL COMPACT><DD> Arkansas. </DL>
<A NAME="arkansan">
<B>Arkansan, </B>noun.<DL COMPACT><DD> a native or inhabitant or Arkansas. </DL>
<A NAME="arkansawyer">
<B>Arkansawyer, </B>noun.<DL COMPACT><DD> (Informal or Dialect.) <B>=Arkansan.</B> </DL>
<A NAME="arkie">
<B>Arkie, </B>noun.<DL COMPACT><DD> (U.S. Informal.) a migratory farm worker from Arkansas. <BR> <I>Ex. ... the "Okies" and "Arkies" in the orchards and vegetable fields of California (White and Renner).</I> </DL>
<A NAME="arkofthecovenant">
<B>Ark of the Covenant,</B><DL COMPACT><DD> the wooden chest or box in which the Israelites kept the two stone tablets containing the Ten Commandments. </DL>
<A NAME="arkose">
<B>arkose, </B>noun.<DL COMPACT><DD> a sandstone derived from granite, containing small quantities of feldspar and occasionally quartz or mica. </DL>
<A NAME="arles">
<B>arles, </B>noun pl. or sing.<DL COMPACT><DD> (North British Dialect.) money given in confirmation of a bargain or engagement; earnest money. </DL>
