Pronunciation: (dī'mund, dī'u-), [key]
1. a pure or nearly pure, extremely hard form of carbon, naturally crystallized in the isometric system.
2. a piece of this stone.
3. a transparent, flawless or almost flawless piece of this stone, esp. when cut and polished, valued as a precious gem.
4. 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 sing. or pl. v.) 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.
14. Print.a 4½-point type of a size between brilliant and pearl.
15. diamond in the rough, a person of fine character but lacking refined manners or graces.

1. made of or set with a diamond or diamonds.
2. having the shape of a diamond: a dress with a diamond print.
3. indicating the 75th, or sometimes the 60th, event of a series, as a wedding anniversary. See table under wedding anniversary.

to adorn with or as if with diamonds.


Pronunciation: (dī'mund, dī'u-), [key]
1. Neil, born 1941, U.S. singer and songwriter.
2. Cape, a hill in Canada, in S Quebec, on the St. Lawrence River.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

diammonium phosphatediamondback
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