<B>thirteen, </B>noun, adjective.<DL COMPACT><DD> three more than ten; 13. <BR> <I>Ex. She thinks thirteen is an unlucky number.</I> </DL>
<A NAME="thirteenth">
<B>thirteenth, </B>adjective, noun.<DL COMPACT><DD><B> 1. </B>next after the 12th; last in a series of 13. <BR> <I>Ex. The thirteenth cookie made a baker's dozen.</I> <DD><B> 2. </B>one, or being one, of 13 equal parts. </DL>
<A NAME="thirtieth">
<B>thirtieth, </B>adjective, noun.<DL COMPACT><DD><B> 1. </B>next after the 29th; last in a series of 30. <DD><B> 2. </B>one, or being one, of 30 equal parts. <BR> <I>Ex. A day is about one thirtieth of a month.</I> </DL>
<A NAME="thirty">
<B>thirty, </B>noun, pl. <B>-ties,</B> adjective.<DL COMPACT><DD><I>noun </I> <B>1. </B>three times ten; 30. <DD><B> 2. </B>the figure "30" as a symbol placed at, and designating, the end of a news story or other piece of copy. <DD><I>adj. </I> three times ten; 30. </DL>
<A NAME="thirtyeight">
<B>thirty-eight</B> or<B> .38, </B>noun.<DL COMPACT><DD> a .38 caliber revolver or automatic pistol. </DL>
<A NAME="thirtyfold">
<B>thirtyfold, </B>adjective, adverb.<DL COMPACT><DD> thirty times as great or as much; increased thirty times. </DL>
<A NAME="thirtyish">
<B>thirtyish, </B>adjective.<DL COMPACT><DD> about thirty years of age; looking thirty years old. </DL>
<A NAME="thirtysecondnote">
<B>thirty-second note,</B><DL COMPACT><DD> (Music.) a note played for one thirty-second as long as a whole note; demisemiquaver. </DL>
<A NAME="thirtysecondrest">
<B>thirty-second rest,</B><DL COMPACT><DD> (Music.) a rest equivalent in time value to a thirty-second note. </DL>
<A NAME="thirtythree">
<B>thirty-three, </B>noun.<DL COMPACT><DD> a phonograph record which revolves at 33 1/3 revolutions per minute; long-playing record. </DL>
<A NAME="thirtytwomo">
<B>thirty-twomo, </B>noun, pl. <B>-mos,</B> adjective.<DL COMPACT><DD><I>noun </I> <B>1. </B>a size of a book, or of its pages, made by folding a sheet of paper thirty-two times to form leaves about 3 1/2 X 5 1/2 inches. (Abbr:) 32mo. <DD><B> 2. </B>a book having pages of this size. <DD><I>adj. </I> of this size; having pages of this size. </DL>
<A NAME="this">
<B>this, </B>adjective, pronoun, pl. <B>these,</B> adverb.<DL COMPACT><DD><I>adj. </I> <B>1. </B>present; near; spoken of; referred to. <BR> <I>Ex. this minute, this child, this idea.</I> <DD><B> 2a. </B>indicating the nearer of two or nearest of several things in time or space. <BR> <I>Ex. Do you prefer this tie or that one in the closet?</I> <DD><B> b. </B>indicating one thing as distinct from another or others. <BR> <I>Ex. School begins at eight this year. You may have this one, this next one, or that one, but not all three.</I> <DD><I>pron. </I> <B>1. </B>the person, thing, event, quality, condition, or idea that is present, near, or referred to now. <BR> <I>Ex. This is my brother. After this you must go home.</I> <DD><B> 2. </B>the one emphasized or contrasted with another called "that". <BR> <I>Ex. Take this, or this, but not that. Shall we buy this or that?</I> <DD><I>adv. </I> to this degree or extent; so. <BR> <I>Ex. You can have this much.</I> </DL>
<A NAME="thisaway">
<B>this-a-way, </B>adverb.<DL COMPACT><DD> (U.S. Dialect.) in this fashion or direction. <BR> <I>Ex. It happened this-a-way (New York Times).</I> </DL>
<A NAME="thisbe">
<B>Thisbe, </B>noun.<DL COMPACT><DD> (Greek Legend.) a maiden loved by Pyramus. Pyramus killed himself thinking that Thisbe had been devoured by a lion, and she killed herself when she found him dead. </DL>
<A NAME="thisness">
<B>thisness, </B>noun.<DL COMPACT><DD> the state or quality of being this; the particular reality of a thing. <BR> <I>Ex. Each community has its particular identity, a thisness that makes it different from other places (New Yorker).</I> </DL>
<A NAME="thistle">
<B>thistle, </B>noun.<DL COMPACT><DD><B> 1. </B>any one of various plants that have prickles on the stem and leaves and, usually, purple flowers. The blossom of one kind of purple thistle, the bull thistle, is the national flower of Scotland. <DD><B> 2. </B>any one of several other prickly plants. adj. <B>thistlelike.</B> </DL>
<A NAME="thistledown">
<B>thistledown, </B>noun.<DL COMPACT><DD> the downy growth that forms on ripe thistle seeds. </DL>
<A NAME="thistletube">
<B>thistle tube,</B><DL COMPACT><DD> a funnel-shaped glass tube used by chemists, having a large bulb like the head of a thistle between the conical flaring part and the rest of the tube. </DL>
<A NAME="thistly">
<B>thistly, </B>adjective.<DL COMPACT><DD><B> 1. </B>like thistles; prickly. <BR> <I>Ex. (Figurative.) The unpleasant old man had a thistly disposition.</I> <DD><B> 2. </B>having many thistles. </DL>
<A NAME="thisworldliness">
<B>this-worldliness, </B>noun.<DL COMPACT><DD> devotion to the things of this world. <BR> <I>Ex. She speaks of four modern revolutions--of equality, of this-worldliness, of rising birth rates, and of driving scientific change (Atlantic).</I> </DL>
<A NAME="thisworldly">
<B>this-worldly, </B>adjective.<DL COMPACT><DD> of or concerned with the present world or state of existence. <BR> <I>Ex. The guests were always this-worldly, and often profane (Mark Twain).</I> </DL>
<A NAME="thither">
<B>thither, </B>adverb, adjective.<DL COMPACT><DD><I>adv. </I> <B>1. </B>to that place; toward that place; there. <DD><B> 2. </B>(Obsolete.) to or toward that end, purpose, result, or action. <DD><I>adj. </I> on that side; farther. </DL>
<A NAME="thitherto">
<B>thitherto, </B>adverb.<DL COMPACT><DD> up to that time; until then. </DL>
<A NAME="thitherward">
<B>thitherward, </B>adverb.<DL COMPACT><DD> toward that place; in that direction; thither. <BR> <I>Ex. Were thy vocation in truth thitherward! (Scott).</I> </DL>
<B>thixotropic, </B>adjective.<DL COMPACT><DD> exhibiting or characterized by thixotropy. </DL>
<A NAME="thixotropy">
<B>thixotropy, </B>noun.<DL COMPACT><DD> (Chemistry.) the property of becoming fluid when stirred or agitated, as exhibited by gels. </DL>
<A NAME="thm">
<B>Th. M.,</B><DL COMPACT><DD> Master of Theology. </DL>
<A NAME="tho">
<B>tho</B> or <B>tho', </B>conjunction, adverb. <B>=though.</B></DL>
<A NAME="thob">
<B>thob, </B>noun. <B>=tobe.</B></DL>
<A NAME="thole">
<B>thole</B> (1), noun.<DL COMPACT><DD> a peg or pin, often one of a pair, on the gunwale of a boat to hold an oar in rowing. </DL>
<A NAME="thole">
<B>thole</B> (2), verb, <B>tholed,</B> <B>tholing.</B><DL COMPACT><DD> (Archaic.) <DD><I>v.t. </I> to be subjected or exposed to (something evil); be afflicted with. <DD><I>v.i. </I> to be patient; wait patiently. </DL>
<A NAME="tholeiite">
<B>tholeiite, </B>noun.<DL COMPACT><DD> a form of basalt, usually containing quartz and alkalic feldspar. <BR> <I>Ex. The tholeiites represent the primary magma generated in the upper mantle beneath the oceans (Lawrence Ogden).</I> </DL>
<A NAME="tholeiitic">
<B>tholeiitic, </B>adjective.<DL COMPACT><DD> of or containing tholeiite. </DL>
<A NAME="tholepin">
<B>tholepin, </B>noun. <B>=thole.</B></DL>
<A NAME="tholin">
<B>tholin, </B>noun.<DL COMPACT><DD> a chemical mixture of complex organic compounds found in interstellar space. <BR> <I>Ex. The Cornell group proposed that the interstellar solid grains are composed of tholins and that the more complex interstellar gas molecules are their degradation products (Joseph Ashbrook).</I> </DL>
<A NAME="tholobate">
<B>tholobate, </B>noun.<DL COMPACT><DD> the circular substructure on which a dome or cupola rests. </DL>
<A NAME="tholos">
<B>tholos, </B>noun, pl. <B>-loi,</B> <B>-li.</B><DL COMPACT><DD><B> 1. </B>a circular domed building or structure; dome; cupola. <DD><B> 2. </B>(in ancient Greece) a circular tomb of the Mycenaean age, domed and lined with masonry; beehive tomb. </DL>
<A NAME="thomas">
<B>Thomas, </B>noun.<DL COMPACT><DD> one of Christ's twelve apostles (in the Bible, John 11:16; 20:24-29). He at first doubted the Resurrection. In the Gospel of John he is surnamed Didymus. </DL>
<A NAME="thomism">
<B>Thomism, </B>noun.<DL COMPACT><DD> the scholastic and theological doctrines of Saint Thomas Aquinas (1225?-1274), Italian philosopher and theologian of the Roman Catholic Church. <BR> <I>Ex. During the fifteenth century Thomism was reaching the position of ascendancy which it has held ever since in Catholic thinking (Listener).</I> </DL>
<A NAME="thomist">
<B>Thomist, </B>noun, adjective.<DL COMPACT><DD><I>noun </I> a follower of Saint Thomas Aquinas. <DD><I>adj. </I> of or having to do with the Thomists or Thomism. </DL>
<B>Thompson seedless,</B><DL COMPACT><DD> a variety of a light green or pale yellow grape much grown in California for use in the raisin industry. </DL>
<B>Thompson submachine gun,</B><DL COMPACT><DD> (Trademark.) a small, light, air-cooled, automatic firearm, using .45-caliber ammunition, that can be carried by one man, fired either from the hip or the shoulder; Tommy gun. </DL>
<A NAME="thomsonsgazelle">
<B>Thomson's gazelle,</B><DL COMPACT><DD> a small gazelle of East Africa, having prominent white markings on the face. </DL>
<A NAME="thong">
<B>thong, </B>noun.<DL COMPACT><DD><B> 1. </B>a narrow strip of leather or hide, especially one used as a fastening. <BR> <I>Ex. The ancient Greeks laced their sandals with thongs.</I> <DD><B> 2. </B>the lash of a whip, especially one made of plaited strips of leather. <DD><B> 3. </B>Often <B>thongs.</B> flat sandal made of rubber, held on the foot by a thong between the first and second toes and over the instep. </DL>
<A NAME="thor">
<B>Thor, </B>noun.<DL COMPACT><DD> the ancient Scandinavian god of thunder and war, bringer of rain to the crops. He destroyed the giants, foes of the gods, with his magic hammer made by the dwarfs. </DL>
<A NAME="thoracectomy">
<B>thoracectomy, </B>noun, pl. <B>-mies.</B><DL COMPACT><DD> surgical removal of part of a rib. </DL>
<A NAME="thoracic">
<B>thoracic, </B>adjective.<DL COMPACT><DD> of, having to do with, or in the region of the thorax. The thoracic cavity contains the heart and lungs. </DL>
<A NAME="thoracicduct">
<B>thoracic duct,</B><DL COMPACT><DD> the main trunk of the lymphatic system, that passes through the thoracic cavity in front of the spinal column and empties lymph and chyle into the blood through the left subclavian vein. </DL>
<A NAME="thoracicolumbar">
<B>thoracicolumbar, </B>adjective.<DL COMPACT><DD> of or having to do with the thoracic and lumbar regions. </DL>