gold /ˈgold/ 名詞
Gold Golde, Goolde n. Bot. An old English name of some yellow flower, -- the marigold (Calendula), according to Dr. Prior, but in Chaucer perhaps the turnsole.
1. Chem. A metallic element of atomic number 79, constituting the most precious metal used as a common commercial medium of exchange. It has a characteristic yellow color, is one of the heaviest substances known (specific gravity 19.32), is soft, and very malleable and ductile. It is quite unalterable by heat (melting point 1064.4° C), moisture, and most corrosive agents, and therefore well suited for its use in coin and jewelry. Symbol Au (Aurum). Atomic weight 196.97.
Note: ☞ Native gold contains usually eight to ten per cent of silver, but often much more. As the amount of silver increases, the color becomes whiter and the specific gravity lower. Gold is very widely disseminated, as in the sands of many rivers, but in very small quantity. It usually occurs in quartz veins (gold quartz), in slate and metamorphic rocks, or in sand and alluvial soil, resulting from the disintegration of such rocks. It also occurs associated with other metallic substances, as in auriferous pyrites, and is combined with tellurium in the minerals petzite, calaverite, sylvanite, etc. Pure gold is too soft for ordinary use, and is hardened by alloying with silver and copper, the latter giving a characteristic reddish tinge. [See Carat.] Gold also finds use in gold foil, in the pigment purple of Cassius, and in the chloride, which is used as a toning agent in photography.
2. Money; riches; wealth.
For me, the gold of France did not seduce. --Shak.
3. A yellow color, like that of the metal; as, a flower tipped with gold.
4. Figuratively, something precious or pure; as, hearts of gold.
Age of gold. See Golden age, under Golden.
Dutch gold, Fool's gold, Gold dust, etc. See under Dutch, Dust, etc.
Gold amalgam, a mineral, found in Columbia and California, composed of gold and mercury.
Gold beater, one whose occupation is to beat gold into gold leaf.
Gold beater's skin, the prepared outside membrane of the large intestine of the ox, used for separating the leaves of metal during the process of gold-beating.
Gold beetle Zool., any small gold-colored beetle of the family Chrysomelidæ; -- called also golden beetle.
Gold blocking, printing with gold leaf, as upon a book cover, by means of an engraved block. --Knight.
Gold cloth. See Cloth of gold, under Cloth.
Gold Coast, a part of the coast of Guinea, in West Africa.
Gold cradle. Mining See Cradle, n., 7.
Gold diggings, the places, or region, where gold is found by digging in sand and gravel from which it is separated by washing.
Gold end, a fragment of broken gold or jewelry.
Gold-end man. (a) A buyer of old gold or jewelry. (b) A goldsmith's apprentice. (c) An itinerant jeweler. “I know him not: he looks like a gold-end man.” --B. Jonson.
Gold fever, a popular mania for gold hunting.
Gold field, a region in which are deposits of gold.
Gold finder. (a) One who finds gold. (b) One who empties privies. [Obs. & Low] --Swift.
Gold flower, a composite plant with dry and persistent yellow radiating involucral scales, the Helichrysum Stœchas of Southern Europe. There are many South African species of the same genus.
Gold foil, thin sheets of gold, as used by dentists and others. See Gold leaf.
Gold knobs or Gold knoppes Bot., buttercups.
Gold lace, a kind of lace, made of gold thread.
Gold latten, a thin plate of gold or gilded metal.
Gold leaf, gold beaten into a film of extreme thinness, and used for gilding, etc. It is much thinner than gold foil.
Gold lode Mining, a gold vein.
Gold mine, a place where gold is obtained by mining operations, as distinguished from diggings, where it is extracted by washing. Cf. Gold diggings (above).
Gold nugget, a lump of gold as found in gold mining or digging; -- called also a pepito.
Gold paint. See Gold shell.
Gold pheasant, or Golden pheasant. Zool. See under Pheasant.
Gold plate, a general name for vessels, dishes, cups, spoons, etc., made of gold.
Gold of pleasure.
Gold shell. (a) A composition of powdered gold or gold leaf, ground up with gum water and spread on shells, for artists' use; -- called also gold paint. (b) Zool. A bivalve shell (Anomia glabra) of the Atlantic coast; -- called also jingle shell and silver shell. See Anomia.
Gold size, a composition used in applying gold leaf.
Gold solder, a kind of solder, often containing twelve parts of gold, two of silver, and four of copper.
Gold stick, the colonel of a regiment of English lifeguards, who attends his sovereign on state occasions; -- so called from the gilt rod presented to him by the sovereign when he receives his commission as colonel of the regiment. [Eng.]
Gold thread. (a) A thread formed by twisting flatted gold over a thread of silk, with a wheel and iron bobbins; spun gold. --Ure. (b) Bot. A small evergreen plant (Coptis trifolia), so called from its fibrous yellow roots. It is common in marshy places in the United States.
Gold tissue, a tissue fabric interwoven with gold thread.
Gold tooling, the fixing of gold leaf by a hot tool upon book covers, or the ornamental impression so made.
Gold washings, places where gold found in gravel is separated from lighter material by washing.
Gold worm, a glowworm. [Obs.]
Jeweler's gold, an alloy containing three parts of gold to one of copper.
Mosaic gold. See under Mosaic.
adj 1: made from or covered with gold; "gold coins"; "the gold dome
of the Capitol"; "the golden calf"; "gilded icons"
[syn: golden, gilded]
2: having the deep slightly brownish color of gold; "long
aureate (or golden) hair"; "a gold carpet" [syn: aureate,
gilded, gilt, golden]
n 1: coins made of gold
2: a deep yellow color; "an amber light illuminated the room";
"he admired the gold of her hair" [syn: amber]
3: a soft yellow malleable ductile (trivalent and univalent)
metallic element; occurs mainly as nuggets in rocks and
alluvial deposits; does not react with most chemicals but
is attacked by chlorine and aqua regia [syn: Au, atomic
4: great wealth; "Whilst that for which all virtue now is sold,
and almost every vice--almighty gold"--Ben Jonson
5: something likened to the metal in brightness or preciousness
or superiority etc.; "the child was as good as gold"; "she
has a heart of gold"
Atomic number: 79
Atomic weight: 196.96655
Gold is gold colored. It is the most malleable and ductile metal known.
There is only one stable isotope of gold, and five radioisotopes of gold,
Au-195 being the most stable with a half-life of 186 days. Gold is used
as a monetary standard, in jewelry, dentistry, electronics. Au-198 is used
in treating cancer and some other medical conditions. Gold has been known
to exist as far back as 2600 BC. Gold comes from the Anglo-Saxon word gold.
Its symbol, Au, comes from the Latin word aurum, which means gold. Gold is
not particularly toxic, however it is known to cause damage to the liver
and kidneys in some.
(1.) Heb. zahab, so called from its yellow colour (Ex. 25:11; 1
Chr. 28:18; 2 Chr. 3:5).
(2.) Heb. segor, from its compactness, or as being enclosed or
treasured up; thus precious or "fine gold" (1 Kings 6:20; 7:49).
(3.) Heb. paz, native or pure gold (Job 28:17; Ps. 19:10;
(4.) Heb. betzer, "ore of gold or silver" as dug out of the
mine (Job 36:19, where it means simply riches).
(5.) Heb. kethem, i.e., something concealed or separated (Job
28:16,19; Ps. 45:9; Prov. 25:12). Rendered "golden wedge" in
(6.) Heb. haruts, i.e., dug out; poetic for gold (Prov. 8:10;
16:16; Zech. 9:3).
Gold was known from the earliest times (Gen. 2:11). It was
principally used for ornaments (Gen. 24:22). It was very
abundant (1 Chr. 22:14; Nah. 2:9; Dan. 3:1). Many tons of it
were used in connection with the temple (2 Chr. 1:15). It was
found in Arabia, Sheba, and Ophir (1 Kings 9:28; 10:1; Job
28:16), but not in Palestine.
In Dan. 2:38, the Babylonian Empire is spoken of as a "head of
gold" because of its great riches; and Babylon was called by
Isaiah (14:4) the "golden city" (R.V. marg., "exactress,"
adopting the reading _marhebah_, instead of the usual word