<B>-th,</B><DL COMPACT><DD> (suffix added to numbers (<I>from fourth on</I>).) number ______ in order or position in a series. <BR> <I>Ex. Sixth = number six in order or position in a series.</I> <DL COMPACT><DD> Also, <B>-eth.</B> </DL>
</DL>
<A NAME="th">
<B>Th</B> (no period),<DL COMPACT><DD> thorium (chemical element). </DL>
<B>Thackerayan, </B>adjective.<DL COMPACT><DD> of, having to do with, or characteristic of the English novelist William Makepeace Thackeray (1811-1863) or his works. <BR> <I>Ex. A certain cynical humor which is almost Thackerayan in quality (Scottish Leader).</I> </DL>
<A NAME="thad">
<B>Thad.,</B><DL COMPACT><DD> Thaddaeus. </DL>
<A NAME="thaddaeus">
<B>Thaddaeus, </B>noun.<DL COMPACT><DD> Jude, or Saint Judas, one of the Apostles. </DL>
<A NAME="thae">
<B>thae, </B>adjective, pronoun.<DL COMPACT><DD> (Scottish.) plural of <B>that.</B> </DL>
<A NAME="thai">
<B>Thai, </B>noun, adjective.<DL COMPACT><DD><I>noun </I> <B>1. </B>the language of Thailand; Siamese. <DD><B> 2a. </B>a family of languages spoken in Thailand and parts of Burma, Indochina, and China, including Shan, Lao, and the language of Thailand. <DD><B> b. </B>any one of the people who speak these languages, especially a person born or living in Thailand. <BR> <I>Ex. Most Thais also still believe ... that the elephant is a "great and ample demonstration of the power and wisdom of almighty God" (Time).</I> <DD><I>adj. </I> <B>1. </B>of or having to do with the Thai language family or the peoples that speak languages of this family. <DD><B> 2. </B>of or having to do with Thailand (Siam); Siamese. Also, <B>Tai.</B> </DL>
<B>thalamencephalon, </B>noun, pl. <B>-la.</B> <B>=diencephalon.</B></DL>
<A NAME="thalamic">
<B>thalamic, </B>adjective.<DL COMPACT><DD> of or having to do with the thalamus. adv. <B>thalamically.</B> </DL>
<A NAME="thalamotomy">
<B>thalamotomy, </B>noun, pl. <B>-mies.</B><DL COMPACT><DD> a surgical incision into the thalamus, as in the treatment of severe emotional disturbance. </DL>
<A NAME="thalamus">
<B>thalamus, </B>noun, pl. <B>-mi.</B><DL COMPACT><DD><B> 1. </B>a large, oblong mass of gray matter in the posterior part of the forebrain, from which nerve fibers pass to the sensory parts of the cortex and which is connected with the optic nerve; optic thalamus. <BR> <I>Ex. Most physiologists believe that the site of salicylic acid's analgesic action is the thalamus, the chief sensory reception center, located in the forebrain (New Yorker).</I> <DD><B> 2. </B>(Botany.) <DD><B> a. </B>the receptacle of a flower; torus. <DD><B> b. </B>thallus. </DL>
<A NAME="thalassemia">
<B>thalassemia, </B>noun.<DL COMPACT><DD> a hereditary blood disorder in which the red blood cells are misshapen and easily destroyed, leading to anemia; Mediterranean anemia. One form is often fatal in childhood. </DL>
<A NAME="thalassian">
<B>thalassian, </B>adjective, noun.<DL COMPACT><DD><I>adj. </I> of or having to do with the sea; marine. <DD><I>noun </I> any sea turtle. </DL>
<A NAME="thalassic">
<B>thalassic, </B>adjective.<DL COMPACT><DD><B> 1. </B>of or having to do with the sea. <DD><B> 2. </B>of or having to do with the smaller or inland seas, as distinct from the pelagic waters or oceans. <DD><B> 3. </B>growing or living in, or formed in or by, the sea; marine. </DL>
<A NAME="thalassochemical">
<B>thalassochemical, </B>adjective.<DL COMPACT><DD> of or having to do with thalassochemistry. </DL>
<A NAME="thalassochemistry">
<B>thalassochemistry, </B>noun.<DL COMPACT><DD> the study of the chemistry of the sea. </DL>
<A NAME="thalassocracy">
<B>thalassocracy, </B>noun, pl. <B>-cies.</B><DL COMPACT><DD><B> 1. </B>mastery at sea; sovereignty of the sea. <DD><B> 2. </B>a kingdom having such mastery. <BR> <I>Ex. The Aegean was the nursery of thalassocracies, that is to say the sea kingdoms that grew fat and then split up through internal dissension or invasion, forming new colonies elsewhere (New Scientist).</I> </DL>
<A NAME="thalassocrat">
<B>thalassocrat, </B>noun.<DL COMPACT><DD> a ruler or master of the sea. </DL>
<A NAME="thalassography">
<B>thalassography, </B>noun.<DL COMPACT><DD> the science of the ocean; oceanography. </DL>
<A NAME="thaler">
<B>thaler, </B>noun, pl. <B>-ler.</B><DL COMPACT><DD><B> 1. </B>a large silver coin formerly used in Germany; taler. The thaler was replaced by the mark. <DD><B> 2. </B><B>=Levant dollar.</B> </DL>
<A NAME="thalia">
<B>Thalia, </B>noun.<DL COMPACT><DD> (Greek Mythology.) <DD><B> 1. </B>the Muse of comedy and idyllic poetry. <DD><B> 2. </B>one of the three Graces. </DL>
<A NAME="thalictrum">
<B>thalictrum, </B>noun.<DL COMPACT><DD> any one of a group of plants of the crowfoot family; meadow rue. </DL>
<A NAME="thalidomide">
<B>thalidomide, </B>noun.<DL COMPACT><DD> a tranquilizing drug formerly used as a sedative and hypnotic, discontinued after its use during early pregnancy was found to cause malformation of the fetus, especially the failure of development of the limbs. </DL>
<A NAME="thalidomidebaby">
<B>thalidomide baby,</B><DL COMPACT><DD> a malformed baby born to a woman who had taken thalidomide during pregnancy. <BR> <I>Ex. Because thalidomide babies have above average intelligence, Dr. Hauberg is theorizing about some mysterious process of natural compensation (Time).</I> </DL>
<A NAME="thallic">
<B>thallic, </B>adjective.<DL COMPACT><DD> (Chemistry.) <DD><B> 1. </B>of thallium. <DD><B> 2. </B>containing thallium, especially with a valence of three. </DL>
<A NAME="thalline">
<B>thalline, </B>noun.<DL COMPACT><DD> a white, crystalline base yielding salts used as antipyretics. </DL>
<A NAME="thallium">
<B>thallium, </B>noun.<DL COMPACT><DD> a soft, bluish-white, metallic chemical element. Thallium has a leaden luster, is extremely malleable, and is almost devoid of tenacity and elasticity. It occurs in small quantities in iron and zinc ores and in various minerals. Its compounds are extremely poisonous and are used to kill insects and rodents. Thallium is also used in making glass of high refractive power. </DL>
<A NAME="thalliumsulfate">
<B>thallium sulfate,</B><DL COMPACT><DD> a colorless, crystalline poison absorbed through the skin, used as a rodenticide and insecticide. </DL>
<A NAME="thalloid">
<B>thalloid, </B>adjective.<DL COMPACT><DD> (Botany.) of, resembling, or consisting of a thallus. </DL>
<A NAME="thallophyte">
<B>thallophyte, </B>noun.<DL COMPACT><DD> any one of a large group of plants in which the plant shows no differentiation into stem, leaf, and root. The simpler unicellular forms reproduce by cell division or by asexual spores; the higher forms reproduce both asexually andsexually. Bacteria, algae, fungi, and lichens are thallophytes. </DL>
<A NAME="thallophytic">
<B>thallophytic, </B>adjective.<DL COMPACT><DD> of or having to do with the thallophytes. </DL>
<A NAME="thallous">
<B>thallous, </B>adjective.<DL COMPACT><DD> (Chemistry.) <DD><B> 1. </B>of thallium. <DD><B> 2. </B>containing thallium, especially with a valence of one. </DL>
<A NAME="thallus">
<B>thallus, </B>noun, pl. <B>thalli,</B> <B>thalluses.</B><DL COMPACT><DD> a plant not divided into leaves, stem, and root; the plant body characteristic of thallophytes. Mushrooms, toadstools, and lichens are thalli. </DL>
<A NAME="thammuz">
<B>Thammuz, </B>noun. <B>=Tammuz.</B></DL>
<A NAME="than">
<B>than, </B>conjunction, preposition.<DL COMPACT><DD><I>conj. </I> <B>1. </B>in comparison with. <BR> <I>Ex. He is taller than his sister. This train is faster than that one.</I> <DD><B> 2. </B>compared to that which. <BR> <I>Ex. She has more money than she needs.</I> <DD><B> 3. </B>except; besides. <BR> <I>Ex. How else can we come than by airplane?</I> <DD><I>prep. </I> <B>than whom,</B> compared to whom. <BR> <I>Ex. Present also was Sheridan, than whom there was no abler speaker in the group.</I> </DL>
<A NAME="thana">
<B>thana, </B>noun. <B>=tana</B> (1).</DL>
<A NAME="thanadar">
<B>thanadar, </B>noun. <B>=tanadar.</B></DL>
<A NAME="thanah">
<B>thanah, </B>noun. <B>=tana</B> (1).</DL>
<A NAME="thanatism">
<B>thanatism, </B>noun.<DL COMPACT><DD> the belief that at death the human soul ceases to exist. </DL>
<A NAME="thanatoid">
<B>thanatoid, </B>adjective.<DL COMPACT><DD><B> 1. </B>resembling death; apparently dead. <BR> <I>Ex. We carted the old man into the restaurant and propped him up at a table. He looked exactly the same--thanatoid (Truman Capote).</I> <DD><B> 2. </B>deadly, as a venomous snake. </DL>
<A NAME="thanatological">
<B>thanatological, </B>adjective.<DL COMPACT><DD> of or having to do with thanatology or thanatologists. <BR> <I>Ex. Undertakers from eleven European countries have organized the European Thanatological Association (Time).</I> </DL>
<A NAME="thanatologist">
<B>thanatologist, </B>noun.<DL COMPACT><DD><B> 1. </B>a person who studies or is versed in thanatology. <DD><B> 2. </B>an undertaker. <BR> <I>Ex. The embalmers of Quebec now prefer to be known as thanatologists (American Speech).</I> </DL>
<A NAME="thanatology">
<B>thanatology, </B>noun.<DL COMPACT><DD> the scientific study of death and its causes and phenomena. </DL>
<A NAME="thanatopsis">
<B>thanatopsis, </B>noun.<DL COMPACT><DD> a contemplation of death; meditative viewing of the end of life. </DL>
<A NAME="thanatos">
<B>Thanatos, </B>noun.<DL COMPACT><DD> (Greek Mythology.) death personified as a god, identified with the Roman Mors. </DL>
<A NAME="thane">
<B>thane, </B>noun.<DL COMPACT><DD><B> 1. </B>(in early English history) a man who ranked between an earl and an ordinary freeman. Thanes held lands of the king or lord and gave military service in return. <DD><B> 2. </B>(in Scottish history) a person, equal in rank to an earl's son, who held lands of the king; the chief of a clan, who became one of the king's barons; Scottish baron or lord. <BR> <I>Ex. All hail, Macbeth! hail to thee, thane of Glamis! (Shakespeare).</I> <DD> Also, <B>thegn.</B> </DL>
