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metallic, a. and n.|mɪˈtælɪk|
[ad. L. metallic-us (or the derived F. métallique), a. Gr. µεταλλικ-ός, f. µέταλλον metal n.]
A. adj.
1. a. Of or pertaining to, consisting of or containing, a metal or metals; of the nature of or resembling a metal.
metallic beds, ‘beds consisting of iron ore’ (Ogilvie 1850). metallic glasses (see quot. 1807).
1567J. Maplet Gr. Forest A vij b, Ye Mettals Roote is eyther Mettal, or some thing Metallick. 1654Whitlock Zootomia 566 Metallick Transmutation. 1667Milton P.L. i. 673 Metallic Ore. 1670Pettus Fodinæ Reg. Introd., The true Electrum, or Metallick Amber, or seventh Metal. 1756C. Lucas Ess. Waters III. 237 Many metallic minerals are likewise found. 1800tr. Lagrange's Chem. I. 102 The phosphoric acid unites itself to metallic oxides, and forms salts. 1806Med. Jrnl. XV. 564, I did not imagine, that, on the former supposition, any of the metallic medicines could be of material service. 1807Aikin Dict. Chem. & Min. II. 97/2 At a high heat they [metals] become more or less transparent, assume the vitreous texture, and are called metallic glasses. 1874Roscoe Elem. Chem. xvii. 185 The chemical composition of the alloys is not so definite..as that of the other metallic compounds. 1890Syd. Soc. Lex., Metallic sulphide, a combination of a metal with sulphur.
b. Involving coin as distinguished from paper money. metallic currency: the gold, silver, and copper in use as money; opposed to paper currency.
1790Burke Fr. Rev. Wks. 1808 V. 426 They made a sort of swaggering declaration,..that there is no difference in value between metallick money and their assignats. 1833H. Martineau Charmed Sea vii. 109 Day by day, did he look with jealous eyes on the heaps of silver which he must not touch, and long for the security of metallic currency. 1895Daily News 2 Jan. 5/7 No transactions except on a metallic basis were possible.
c. Made of metal. rare.
1711W. King Rufinus, or Favourite 195 A palace..With Parian pillars and metallic beams.
d. metallic pencil: a pencil with a tip made of lead or alloy, for writing indelibly on paper with a prepared surface, used for note-books. (? Hence) metallic book, metallic paper.
1855Ogilvie Suppl., Metallic paper, paper, the surface of which is washed over with a solution of whiting, lime, and size. Writing done with a pewter pencil upon paper prepared in this manner is almost indelible. 1862Catal. Internat. Exhib. No. 5150 Metallic betting books. 1866Livingstone Last Jrnls. (1873) I. Introd. 4 The doctor always had metallic note books in use. 1874[see metallician 1].
e. metallic circuit (Telegr.), a circuit composed entirely of metal conductors, as opposed to one in which the return path of the current is through the earth; similarly metallic return.
1854W. F. Cooke Electr. Telegr. 25 If, from the copper at one end, a piece of wire, or metallic circuit is carried..round to the zinc..a current of electricity immediately passes through the wire. 1928A. Williams Telegr. & Telephony ix. 131 The first telephone companies had a hard fight to interest the public in their services, and to keep down costs—which would have been nearly doubled by a metallic return—only one wire was used for each subscriber. Ibid., The result was that lines with earth-return lines had to be converted into metallic circuits.
f. metallic thread, metallic yarn: thread made from metal, or a synthetic material resembling metal.
1904J. M. Matthews Textile Fibres i. 4 Metallic threads are largely imitated by coating linen yarns with a thin film of gold or silver. 1963A. J. Hall Textile Sci. ii. 105 Metallic yarns are made by various methods which include bonding metal. 1968J. Ironside Fashion Alphabet 211 Today, aluminium or plastic has been substituted for the rather heavy metals and ‘metallic’ yarns are now light, soft and non-tarnishing.
g. metallic soap: any of a class of soaps that are salts of carboxylic acids with an alkaline-earth metal or a heavy metal (instead of with an alkali metal as in ordinary soap) and are soluble in organic solvents but not in water, some of which are used in waterproofing materials, finishing textiles, and making anti-oxidants, lubricants, and fungicides.
1918H. Seymour Reproduction of Sound ii. 44 The metallic soaps so long in use [for the moulding and shaping of disc record blanks] have been superseded on the score of efficiency..but the [new] substance is more difficult to handle than the metallic soaps. 1940A. Wood Acoustics xviii. 504 The recording wax is a circular slab..which is composed of a metallic soap and has a highly polished plane surface. 1952R. A. Pingree in H. C. Speel Textile Chem. & Auxiliaries xx. 404 Air permeable water-resistant treatments were first obtained by depositing a metallic soap in and upon the fibers of the fabric. 1971Materials & Technol. IV. ii. 70 Metallic soaps of long chain fatty acids will gell lubricating oil fractions and the properties of the grease will be governed mainly by the metallic radical.
h. metallic arc welding = metal arc welding s.v. metal n. 14.
1927Jrnl. Iron & Steel Inst. CXV. 909 The welding processes considered by the author are thermit welding, resistance welding..and metallic arc welding. 1948F. Koenigsberger in H. W. Baker Mod. Workshop Technol. I. ix. 181 Metallic-arc welding is the arc-welding process most frequently used in general engineering.
2. Having the form or outward characters of a metal; esp. said of a metal when occurring uncombined with other substances.
1797Encycl. Brit. (ed. 3) XI. 433/2 The platina is found native like the gold, and in its metallic state. 1831[see metallicity]. 1874Roscoe Elem. Chem. xx. 222 Metallic aluminium is obtained by passing the vapour of aluminium chloride over metallic sodium. 1877Raymond Statist. Mines & Mining 240 The ore is..free from base metals, and carries metallic silver.
3. Of a quality: Such as is characteristic of metals.
a. Of colour or appearance, esp. in metallic lustre, the peculiar sheen characteristic of metals. Hence, of things, having a lustre of this kind.
1794R. Kirwan Elem. Min. (ed. 2) I. 333 The external lustre is casual, but the internal is strong and inclining to the metallic. 1797Encycl. Brit. (ed. 3) XI. 450/2 A shining metallic colour. 1822Latham Gen. Hist. Birds III. 274 Metallic Cuckow... Inhabits Sierra Leone. 1854L. A. Meall Moubray's Dom. Poultry 64 Metallic—the indescribable rainbow hues and tints seen on live fish, on some minerals and ores, and on bright steel when placed in the fire. 187.Cassell's Nat. Hist. IV. 31 Some peculiar metallic-plumaged birds, known as the Metallic Cuckoo Shrikes (Campophaga). 1882Garden 17 June 433/1 The sepals are a sort of metallic green. 1890‘R. Boldrewood’ Col. Reformer (1891) 214 The long lagoon lay darkly metallic. 1893Newton Dict. Birds 97 Subjective structural, prismatic, or metallic colours... The metallic portions of the radii are composed of [etc.]. 1936Discovery Dec. 367/2 The marvellous, metallic blue Morphos are eminently characteristic of Tropical America. 1968Motor 21 Dec. 66/3 (Advt.), Lotus Elan..metallic blue with matching interior. 1975G. V. Higgins City on Hill xi. 233 A metallic blue Opel.
b. Of sound: Resembling that produced by metal when struck; often applied to a voice or tone of a harsh unmusical timbre.
Used in Pathology to describe auscultatory sounds, as metallic breathing, metallic echo, metallic heart-sounds, metallic jingling, metallic resonance, metallic ring, metallic tremor (Syd. Soc. Lex.).
1834J. Forbes Laennec's Dis. Chest (ed. 4) 313 The cavernous respiration and metallic tinkling. 1839–40W. Irving Wolfert's R. (1855) 253 Their deep metallic voices. 1872J. C. Jeaffreson Brides & Bridals I. x. 151 It is strange that..a singularly hard and harsh voice should be stigmatized as ‘metallic’. 1883E. Ingersoll in Harper's Mag. Jan. 204/2 A finch..chirping in a metallic manner.
c. Of taste: ‘Coppery’. Also, of the taste of tea made in a metal tea-pot.
1803Med. Jrnl. X. 39 Metallic taste, fetid breath [etc.]. 1909Chambers's Jrnl. Nov. 693/1 The objection to metal is simply that there is a danger of giving the tea what is known as a ‘metallic’ taste.
d. fig.
1828Carlyle Misc. (1857) I. 161 Among clear metallic heroes, and white, high stainless beauties. 1848Clough Amours de Voy. i. 110 With metallic beliefs and regimental devotions. 1875Kinglake Crimea (1877) V. i. 364 A courage so rigid, that almost one might call it metallic. 1882Society 14 Oct. 18/2 Your style is somewhat metallic and unsympathetic.
4. Yielding or producing metal; metalliferous.
1689Packe tr. Glauber's Wks. (title-p.), Choice secrets in Medicine and Alchemy, working of Metallic Mines. 1758Johnson Idler No. 55 ⁋4 The black inhabitants of metallic caverns. 1796Kirwan Elem. Min. (ed. 2) I. 421 Metallic veins are never found in beds of lava. 1870Yeats Nat. Hist. Comm. 112 In the small islands of volcanic origin, metallic lodes, or ores are rare.
†5. Connected with mining or metallurgy. Obs.
1670Pettus Fodinæ Reg. Introd., A Dictionary of such words as concern the Metallick and Chemick Arts. 1762tr. Busching's Syst. Geol. III. 580 All metallic attempts there, a few iron mines excepted, have turned out to the disadvantage of the undertakers. 1834W. Godwin Lives Necromancers 359 He visited the mines of Bohemia, Sweden and the East to perfect himself in metallic knowledge.
†6. metallic history [F. histoire métallique]: history as shown by coins struck during the period dealt with. Cf. medallic a.1 Obs.
1727–41Chambers Cycl. s.v. Metallic, F. Romani has published a metallic history of the popes.
7. Comb., as metallic-coloured, metallic-looking adjs.
1839Westwood Classif. Insects I. 12 Body subquadrate, metallic coloured. 1874Garrod & Baxter Mat. Med. 56 It occurs in crystalline metallic-looking powder of a steel-grey colour.
B. n. pl.
a. Articles or substances made of or containing metal.
1612Sturtevant Metallica 35 Metallica is an Ignick inuention, for the cheaper making of all kindes of mettles or Metalique concoctures,..wherevpon the materials and things made by this Arte, are called Metaliques. 1796Morse Amer. Geog. II. 425 Bituminous particles, mixed with..minerals, metallics, and vitrified sandy substances. 1880J. Percy Metallurgy, Silver & Gold i. 248 The ‘metallics’ or unpulverizable metallic residue may be assayed by cupellation direct, or by [etc.].
b. U.S. (Mech.) Powdered metal for lining the bearings of machine shafts.
1894U.S. Tariff §180 in Times 16 Aug. 6/4 Bronze powder, metallics or fitters, bronze or Dutch metal, or aluminium, in leaf.
Restrict pl. to existing senses a and b. Add: [B.] c. A metallic colour; also, a metallic surface or finish, esp. on a motor vehicle.
1976Industrial Furnishing Apr. 46/1 Disadvantages include:..poor properties with light-colored metallics. 1976Liverpool Echo 6 Dec. 14/4 (Advt.), New Cherry 100 A 2 door, big selection of colours including metallics. 1987Lancaster Guardian 2 Oct. 31/5 (Advt.), Audi 100 CD in Titan red metallic, has done 54,547 miles. 1988Oxford Star 23 June 37/2 (Advt.), 340 GL 3 door..finished in light green metallic. 1991Artpost Summer 20/1 (Advt.), For metallics, interference and pearlescent colours, try Daniel Smith Luminescent Oil Colours. |