metamathematics (met am a them a tiks)

[ The two methyl and ethyl metamers seem distinguishable. Philos. Mag ., XXV. 235. See metamer a, n. Plural of metamer on . metameral (met'a-me-ral), a . [ metamere + -al.] 1. Pertaining to or comprising meta- meres; having correspondence or agreement between parts. - 2. In zoöl . , same as metameric . metamere (met'a-mer), n. [Also metamer on ; μετά , + μέρος , a part.] In zoöl ., one of a longitudinal series of parts which are serially homologous with one another. metameric, metamerism. The construction of bilat- erally symmetrical bodies by metamerism is common and usual in the animal kingdom, and is exhibited in such diversity of details that metameres have received several different names. The most general name is seg- ment; but, since several morphologically distinct meta- meres may coalesce in one segment, the stricter term for an individual metamere, such as each morphological seg- ment or ring of an annelid, crustacean, insect, or other articulate animal, is somite or arthromere. A morpho- logical metamere of a vertebrate has been called a diar- thromere . Compare actinomere and antimere . Ambula- cral metameres. See ambulacral . metameric (met-a-mer'ik), a . [As metamere + -ic.] 1. In chem ., pertaining to or charac- terized by metamerism.-2. In zoöl . , of or per- taining to a metamere or metamerism; being a metamere, or resulting from metamerism; situated in the long axis of the body as one of a longitudinal series of like parts; segmental; somitic. gique = Sp. metalúrgico = Pg. metallurgico, metal lurgi a , metallurgy: NL. metallurgic us , to be metameric; see metallurgy.] Pertaining to metallurgy, or as a metamere. the art of working metals. - Metallurgic chem is try, that part of chemistry which teaches the combina tions and analyses of metals. metallurgical (met-a-ler'ji-kal), a. [ lurgic + -al.] Relating to or connected with metallurgy; belonging to the working of metals: as, metallurgical investigations or pursuits. metallurgically (met-a-ler'ji-kal-i), adv. By metallurgical methods; as regards metallurgy. metallurgist (met'al-ér-jist), n. [F. métallur giste = Sp. meta lur gist a = Pg. metallurgist a; as metallurg -y + -ist.] One who is versed in the science of metallurgy; one who scientifically studies the operations of the smelter. metallurgy (met'al-er-ji), n. [F. métallurgie = Sp. meta lurgi a = Pg. It. metal lurgi a, and easy; that of others is difficult and complex. Smeltsult is metallic lead. The treatment of some ores is simple ing implies the use of fire, or separation of the metal in the dry way, but proce es carried on in the humid way are not unfrequently employed in the treatment of metalliferous ores. This is not ordinarily called smelting, but metallurgical treatment. The ores of many mining gions are treated at or near the place where they are mined, but it is not at all uncommon for ores to be carried to a great distance to be smelted. Thus, until within a few years, a large part of the copper used in the world was smelted at Swansea, in Wales, from ores brought from various countries, metallurgical skill and the command of cheap fuel making it desirable to have the ore treated there rather than at the place where it was mined. Abbreviated metal . metalmant (metal-man), n . [ metal + man .] A worker in metals; a coppersmith or tinman. A smith, or a metal man , the pot's never from his nose. Burton , Anat. of Mel., p. 110. + E. logic.] The part of metaphysics which concerns logic. ficial, being based on physical rather than chemical criteria; but, broadly, a metal may be said to differ from a metalloid in being an excellent conductor of heat and electricity, in reflecting light more or le powerfully, and in being electropositive. Though a metalloid may po e one or more of these characters, it will not be + -al.] Beyond the province of logic; transcending the sphere of logic. metal-plane (met'al-plan), n. A form of plane used to face soft metal plates by taking fine shavings from them. The angle of the cutter IMG:content-0533.png:[ocr errors]