diamond

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See also: Diamond

English[edit]

A diamond (2), (3)
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Pronunciation[edit]

Etymology 1[edit]

From Middle English dyamaunt, from Old French diamant, from Late Latin diamas, from Latin adamas, from Ancient Greek ἀδάμας (adámas, “diamond”).

Noun[edit]

diamond (plural diamonds)

  1. (uncountable) A glimmering glass-like mineral that is an allotrope of carbon in which each atom is surrounded by four others in the form of a tetrahedron.
    The saw is coated with diamond.
  2. A gemstone made from this mineral.
    • 2012 March 1, Lee A. Groat, “Gemstones”, in American Scientist‎[1], volume 100, number 2, page 128:
      Although there are dozens of different types of gems, among the best known and most important are diamond, ruby and sapphire, emerald and other gem forms of the mineral beryl, chrysoberyl, tanzanite, tsavorite, topaz and jade.
    The dozen loose diamonds sparkled in the light.
  3. A ring containing a diamond.
    What a beautiful engagement diamond.
  4. A very pale blue color/colour.
    diamond color:   
  5. Something that resembles a diamond.
  6. (geometry) A rhombus, especially when oriented so that its longer axis is vertical.
  7. (geometry) The polyiamond made up of two triangles.
  8. (baseball) The entire field of play used in the game.
  9. (baseball) The infield of a baseball field.
    The teams met on the diamond.
  10. (card games) A card of the diamonds suit.
    I have only one diamond in my hand.
  11. (printing, uncountable, dated) A size of type, standardised as 4½ point.
Synonyms[edit]
Antonyms[edit]
  • (baseball: infield of a baseball field): outfield
Derived terms[edit]
Terms derived from the noun "diamond"
Translations[edit]
diamond ring — see diamond ring
rhombus — see rhombus
The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout#Translations.
Translations to be checked
See also[edit]

Adjective[edit]

diamond (not comparable)

  1. made of, or containing diamond, a diamond or diamonds.
    He gave her diamond earrings.
  2. of, relating to, or being a sixtieth anniversary.
    Today is their diamond wedding anniversary.
  3. of, relating to, or being a seventy-fifth anniversary.
    Today is their diamond wedding anniversary.
  4. (slang) First-rate; excellent.
    He's a diamond geezer.
Translations[edit]

Verb[edit]

diamond (third-person singular simple present diamonds, present participle diamonding, simple past and past participle diamonded)

  1. to adorn with or as if with diamonds
Translations[edit]

Etymology 2[edit]

Borrowed from Dutch diamant, used by Dirck Voskens who first cut it around 1700, presumably naming it by analogy with the larger Perl.

Noun[edit]

diamond (uncountable)

  1. (printing, dated) The size of type between brilliant and pearl, standardized as 4½-point.

Further reading[edit]

  • “Diamond” in David Barthelmy, Webmineral Mineralogy Database[2], 1997–.
  • diamond mindat.org‎[3], Hudson Institute of Mineralogy, accessed 29 August 2016
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