Platinum Definition–noun | 1. | Chemistry. a heavy, grayish-white, highly malleable and ductile metallic element, resistant to most chemicals, practically unoxidizable except in the presence of bases, and fusible only at extremely high temperatures: used for making chemical and scientific apparatus, as a catalyst in the oxidation of ammonia to nitric acid, and in jewelry. Symbol: Pt; atomic weight: 195.09; atomic number: 78; specific gravity: 21.5 at 20°C. |
| 2. | a light, metallic gray with very slight bluish tinge when compared with silver. |
–adjective
| 4. | (of a record, CD, or cassette) having sold a minimum of one million copies. |
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From Dictionary
Diamond Definition–noun | 1. | a pure or nearly pure, extremely hard form of carbon, naturally crystallized in the isometric system. |
| 3. | a transparent, flawless or almost flawless piece of this stone, esp. when cut and polished, valued as a precious gem. |
| 4. | <
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td valign="top">a ring or other piece of jewelry containing such a precious stone, esp. an engagement ring.
| 5. | a piece of this stone used in a drill or cutting tool. |
| 6. | a tool provided with such an uncut stone, used for cutting glass. |
| 7. | crystallized carbon, or a piece of it, artificially produced. |
| 8. | an equilateral quadrilateral, esp. as placed with its diagonals vertical and horizontal; a lozenge or rhombus. |
| 9. | any rhombus-shaped figure or object oriented with its diagonals vertical and horizontal. |
| 10. | a red rhombus-shaped figure on a playing card. |
| 11. | a card of the suit bearing such figures. |
| 12. | diamonds, (used with a singular or plural verb ) the suit so marked: Diamonds is trump. Diamonds are trump. |
| 13. | Baseball. | a. | the space enclosed by home plate and the three bases; infield. |
| b. | the entire playing field. |
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| 14. | Printing. a 41/2 -point type of a size between brilliant and pearl. |
–adjective | 15. | made of or set with a diamond or diamonds. |
| 16. | having the shape of a diamond: a dress with a diamond print. |
| 17. | indicating the 75th, or sometimes the 60th, event of a series, as a wedding anniversary. |
–verb (used with object) | 18. | to adorn with or as if with diamonds. |
—Idiom| 19. | diamond in the rough, a person of fine character but lac
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king refined manners or graces. |
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From Dictionary
Ring Definition–noun | 1. | a typically circular band of metal or other durable material, esp. one of gold or other precious metal, often set with gems, for wearing on the finger as an ornament, a token of betrothal or marriage, etc. |
| 2. | anything having the form of such a band: a napkin ring; a smoke ring. |
| 3. | a circular or surrounding line or mark: dark rings around the eyes. |
| 4. | a circular course: to dance in a ring. |
| 5. | a number of persons or things situated in a circle or in an approximately circular arrangement: a ring of stones; a ring of hills. |
| 6. | the outside edge of a circular body, as a wheel; rim. |
| 7. | an enclosed area, often circular, as for a sports contest or exhibition: a circus ring. |
| 9. | an enclosure in which boxing and wrestling matches take place, usually consisting of a square, canvas-covered platform with surrounding ropes that are supported at each corner by posts. |
| 10. | the sport of boxing; prizefighting: the heyday of the ring. |
| 11. | (formerly in the U.S., now only in Brit.) an area in a racetrack where bookmakers take bets. |
| 12. | a group of persons cooperating for unethical, illicit, or illegal purposes, as to control stock-market prices, manipulate politicians, or elude the law: a ring of dope smugglers. |
| 13. | a single turn in a spiral or helix or in a spiral course. |
| 14. | Geometry. the area or space between two concentric circles. |
| 16. | a circle of bark cut from around a tree. |
| 17. | Chemistry. a number of atoms so united that they may be graphically represented in cyclic form. Compare chain (def. 7). |
| 19. | a bowlike or circular piece at the top of an anchor, to which the chain or cable is secured. |
| 20. | Also called spinning ring. Textiles. (in the ring-spinning frame) a circular track of highly polished steel on which the traveler moves and which imparts twists to the yarn by variations in its vertical movement. |
| 21. | a unit of measurement of the diameter of cigars, equal to 1/64 of an inch. Also called ring gauge. |
| 23. | Mathematics. a set that is closed under the operations of addition and multiplication and that is an Abelian group with respect to addition and an associative semigroup with respect to multiplication and in which the distributive laws relating the two operations hold. |
–verb (used with object) | 24. | to surround with a ring; encircle. |
| 26. | to insert a ring through the nose of (an animal). |
| 27. | to hem in (animals) by riding or circling about them. |
| 29. | (in horseshoes, ringtoss, etc.) to encircle (a stake or peg) with a ring, horseshoe, etc. |
–verb (used without object) | 30. | to form a ring or rings. |
| 31. | to move in a ring or a constantly curving course: The road rings around the mountain. |
—Idioms| 32. | run rings around, to be obviously superior to; surpass; o
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As an artist, she can run rings around her brother. |
| 33. | throw or toss one's hat in or into the ring. hat (def. 8). |
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From Dictionary
Related topics from Britannicaigneous rock
Other diverse and unusual igneous rocks are found in the stable continental areas far from plate boundaries. These include the large layered basaltic intrusions-namely, the Stillwater Complex in ...
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The most ancient technique of stone engraving, intaglio-incised carving, was probably first used to produce seals. The art is believed to have originated in southern Mesopotamia and was highly ...
jewelry
The Industrial Revolution destroyed forever the ancient role of jewelry as a symbol of social rank. The social evolution created a market for a vast quantity of jewelry at prices the middle class ...
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