<B>all-sky camera,</B><DL COMPACT><DD> an astronomical instrument for photographing the sky from horizon to horizon, consisting of a convex mirror facing the sky and a camera pointed down at its center. </DL>
<B>All Souls' Day,</B><DL COMPACT><DD> November 2 (or the next day if November 2 is a Sunday), a day when services are held in the Roman Catholic Church and prayers said for all the souls in purgatory. </DL>
<A NAME="allspice">
<B>allspice, </B>noun.<DL COMPACT><DD><B> 1. </B>a spice having a flavor suggesting a mixture of cinnamon, nutmeg, and cloves. <DD><B> 2. </B>the berry of the West Indian and Central American pimento tree from which this spice is made. <DD><B> 3. </B>the tree itself; pimento. </DL>
<A NAME="allstar">
<B>all-star, </B>adjective, noun.<DL COMPACT><DD><I>adj. </I> made up of the best players or performers. <BR> <I>Ex. an all-star show. He has been named to an all-star team.</I> <DD><I>noun </I> a member of an all-star team, cast, or other group. </DL>
<A NAME="allterrainvehicle">
<B>all-terrain vehicle,</B><DL COMPACT><DD> a strong, lightweight automobile designed for use on rough, sandy, or marshy terrain. (Abbr:) ATV (no periods). </DL>
<A NAME="allthorn">
<B>allthorn, </B>noun.<DL COMPACT><DD> a desert shrub of the southwestern United States and Mexico, having tiny, scalelike leaves and branches terminating in hard, sharply pointed tips. </DL>
<A NAME="alltime">
<B>all-time, </B>adjective.<DL COMPACT><DD> (U.S. Informal.) <DD><B> 1. </B>of or for time within memory. <BR> <I>Ex. an all-time box office favorite.</I> <DD><B> 2. </B>of or for all time up to the present. <BR> <I>Ex. an all-time track record.</I> <DD><B> 3. </B>outstripping all others of all time. <BR> <I>Ex. an all-time high in farm production.</I> </DL>
<A NAME="alltogether">
<B>all together,</B><DL COMPACT><DD> everyone in a group. <BR> <I>Ex. We found the boys all together in a group.</I> </DL>
<A NAME="allude">
<B>allude, </B>intransitive verb, <B>-luded,</B> <B>-luding.</B><DL COMPACT><DD> to refer indirectly (to); mention slightly in passing. <BR> <I>Ex. Do not ask him about his failure; do not even allude to it.</I> (SYN) hint, intimate, insinuate, advert. </DL>
<A NAME="allumette">
<B>allumette, </B>noun.<DL COMPACT><DD> (French.) a match for lighting a fire. </DL>
<A NAME="allupweight">
<B>all-up weight,</B><DL COMPACT><DD> (Especially British.) the gross weight of an aircraft. </DL>
<A NAME="allure">
<B>allure, </B>verb, <B>-lured,</B> <B>-luring,</B> noun.<DL COMPACT><DD><I>v.t. </I> to tempt or attract very strongly; fascinate; charm. <BR> <I>Ex. Circus life allured him with its action and excitement.</I> <DD><I>v.i. </I> to be attractive or fascinating. <DD><I>noun </I> great charm; attractiveness; fascination. <BR> <I>Ex. the allure of the sea.</I> noun <B>allurement.</B> noun <B>allurer.</B> </DL>
<B>allusion, </B>noun.<DL COMPACT><DD><B> 1. </B>slight or incidental mention made in passing; indirect reference. <BR> <I>Ex. John was hurt by any allusion to his failure.</I> (SYN) hint, intimation, insinuation, suggestion. <DD><B> 2. </B>a reference by something quoted or mentioned in passing, especially to something presumed to be well known. <BR> <I>Ex. His writings are filled with classical allusions.</I> </DL>
<A NAME="allusive">
<B>allusive, </B>adjective.<DL COMPACT><DD> containing an allusion; full of allusions. <BR> <I>Ex. "How do you mean, Nature?" asked Larry, who did not understand the allusive conversation of intellectual men but appreciated it nonetheless (New Yorker).</I> adv. <B>allusively.</B> noun <B>allusiveness.</B> </DL>
<A NAME="alluvial">
<B>alluvial, </B>adjective, noun.<DL COMPACT><DD><I>adj. </I> <B>1. </B>consisting of, or formed by sand, silt, or mud left by flowing water. <BR> <I>Ex. an alluvial plain. A delta is an alluvial deposit at the mouth of a river.</I> <DD><B> 2. </B>found in silt or sand (alluvium) left by flowing water. <DD><I>noun </I> alluvial soil. </DL>
<A NAME="alluvialfan">
<B>alluvial fan</B> or <B>cone,</B><DL COMPACT><DD> (Geology.) a fan-shaped deposit of sand, silt, or mud formed at the point where a stream emerges from a ravine into a plain or other relatively flat area. </DL>
<A NAME="alluvion">
<B>alluvion, </B>noun.<DL COMPACT><DD><B> 1. </B><B>=alluvium.</B> <DD><B> 2. </B>the wash or flow of water against a shore. <DD><B> 3. </B>a flood. <DD><B> 4. </B>(Law.) the formation of new land by the slow deposits made by flowing water or waves. </DL>
<A NAME="alluvium">
<B>alluvium, </B>noun, pl. <B>-viums,</B> <B>-via.</B><DL COMPACT><DD> the deposit of sand, silt, or mud left by flowing water. </DL>
<A NAME="allweather">
<B>all-weather, </B>adjective.<DL COMPACT><DD> (Especially U.S.) that can be used in all kinds of weather. <BR> <I>Ex. an all-weather highway. Bus schedules, moreover, are often highly irregular and the street corner is hardly an all-weather waiting room (Harper's).</I> </DL>
<A NAME="ally">
<B>ally, </B>noun, pl. <B>-lies,</B> verb, <B>-lied,</B> <B>-lying.</B><DL COMPACT><DD><I>noun </I> <B>1. </B>a person, group, or nation united with another for some special purpose. <BR> <I>Ex. England and France have been allies in some wars, though they have fought against each other in others.</I> <DL COMPACT><DD> See also <B>Allies.</B> (SYN) associate, confederate. <DD><B> 2. </B>a helper; supporter. <BR> <I>Ex. (Figurative.) Science instead of being the enemy of religion, becomes its ally (Henry Thomas Buckle).</I> <DD><B> 3. </B>a related animal, plant, form, or thing. <DD><I>v.t. </I> <B>1. </B>to combine for some special purpose; unite by formal agreement. <BR> <I>Ex. The premier of Belgium signed a treaty that allied his country to France.</I> <DD><B> 2. </B>to associate; connect. <BR> <I>Ex. This newspaper is allied with three others.</I> (SYN) affiliate. <DD><B> 3. </B>to relate by similarity, as of structure or descent; connect by a common origin. <BR> <I>Ex. Dogs are allied to wolves.</I> <DD><I>v.i. </I> to join or unite; enter into alliance. <BR> <I>Ex. to ally against the common enemy.</I> </DL>
</DL>
<A NAME="ally">
<B>-ally,</B><DL COMPACT><DD> (suffix forming adverbs.) in a ______ic manner. <BR> <I>Ex. Basically = in a basic manner. Tragically = in a tragic manner.</I> </DL>
<A NAME="allyear">
<B>all-year, </B>adjective.<DL COMPACT><DD> for the whole year; lasting throughout the year; in operation year-round. <BR> <I>Ex. an all-year harbor, all-year air conditioning.</I> </DL>
<A NAME="allyl">
<B>allyl, </B>noun.<DL COMPACT><DD> a univalent, unsaturated, open-chain radical found in the liquids yielded especially by pressing garlic, onion, and mustard seeds. </DL>
<A NAME="allylalcohol">
<B>allyl alcohol,</B><DL COMPACT><DD> a colorless, poisonous liquid used in the synthesis of organic chemicals. The vapor given off by it is so irritating to the eyes and mucous membranes that it has sometimes been used in chemical warfare. </DL>
<A NAME="allylchloride">
<B>allyl chloride,</B><DL COMPACT><DD> a colorless, poisonous liquid used in making allyl alcohol and allyl resin. </DL>
<A NAME="allylic">
<B>allylic, </B>adjective.<DL COMPACT><DD> of or having to do with allyl; characterized by the presence of allyl. </DL>
<A NAME="allylresin">
<B>allyl resin,</B><DL COMPACT><DD> any one of a group of durable, virtually colorless resins prepared from allyl alcohol. </DL>
<A NAME="allylsulfide">
<B>allyl sulfide,</B><DL COMPACT><DD> the colorless or yellowish oil which gives onions and garlic their taste and smell. </DL>
<A NAME="allylthiourea">
<B>allylthiourea, </B>noun. =thiosinamine.</DL>
<A NAME="alma">
<B>alma</B> or <B>almah, </B>noun.<DL COMPACT><DD> (in Egypt) a girl who has been trained as a professional singer and dancer. Also, <B>alme,</B> <B>almeh.</B> </DL>
<A NAME="almagest">
<B>Almagest, </B>noun.<DL COMPACT><DD><B> 1. </B>the great astronomical treatise written by Ptolemy (Greek astronomer of Alexandria) about 140 A.D. <DD><B> 2. </B>Also, <B>almagest.</B> any of various medieval books on astrology and alchemy. </DL>
<A NAME="almamater">
<B>Alma Mater,<DL COMPACT><DD> 1. </B>a title given by the ancient Romans to several goddesses, especially to Ceres. <DD><B> 2. </B><B>=alma mater.</B> </DL>
<A NAME="almamater">
<B>alma mater,<DL COMPACT><DD> 1. </B>a person's school, college, or university, at which he is or has been a student. <BR> <I>Ex. [He] turned over the stock (valued at $1,900) to his alma mater, Gonzaga University (Newsweek).</I> <DD><B> 2. </B>a school's official or particular song. </DL>
<A NAME="almanac">
<B>almanac, </B>noun.<DL COMPACT><DD><B> 1. </B>a reference book published every year, often containing summaries of information on particular subjects. <DD><B> 2. </B>a calendar that also gives information about the weather, sun, moon, stars, tides, church holidays, and other facts. </DL>
<B>almemar, </B>noun.<DL COMPACT><DD> the platform in a synagogue on which stands the lectern used by the reader of the Law and the Prophets; bimah. </DL>
<A NAME="almighty">
<B>almighty, </B>adjective, adverb, noun.<DL COMPACT><DD><I>adj. </I> <B>1. </B>possessing all power; all-powerful. <BR> <I>Ex. O God Almighty, Blessed Saviour (Tennyson).</I> (SYN) omnipotent. <DD><B> 2. </B>having great power. <BR> <I>Ex. ... Truth's almighty charms (William Cowper).</I> <DD><B> 3. </B>(U.S. Informal.) great. <BR> <I>Ex. almighty nonsense.</I> <DD><I>adv. </I> (U.S. Informal.) exceedingly; very. <BR> <I>Ex. ... an almighty fine girl (Mark Twain).</I> <DD><I>noun </I> <B>Almighty</B> or <B>the Almighty,</B> God; the Deity. <BR> <I>Ex. thou Almighty! inwhose hand is fate (Alexander Pope).</I> adv. <B>almightily.</B> noun <B>almightiness.</B> </DL>
<A NAME="almightydollar">
<B>almighty dollar,</B><DL COMPACT><DD> (U.S. Informal.) money thought of as all-powerful. </DL>
<A NAME="almiqui">
<B>almiqui, </B>noun.<DL COMPACT><DD> the solenodon of Cuba. </DL>