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词汇 spinel
释义

Definition of spinel in English:

spinel

noun ˈspɪn(ə)lspɪˈnɛlspəˈnɛl
mass noun
  • 1A hard glassy mineral occurring as octahedral crystals of variable colour and consisting chiefly of magnesium and aluminium oxides.

    尖晶石

    Example sentencesExamples
    • Legendary for its blood-red rubies and spinels, the Mogok stone tract of northern Myanmar also produces an amazing array of other minerals.
    • Even the famous Black Prince Ruby in the British Imperial State Crown is actually a spinel, not a ruby.
    • His collection includes emeralds and spinels of a staggering size (some of them are nearly 300 carats).
    • Dark pink and crimson-red colors are added to the display by the presence of spinels and pyropealmandine garnets.
    • Rubies were found in Burma and Ceylon, topaz, beryl, garnet, amethyst and pearl in Ceylon and Southern India, and spinels and deep blue sapphires in Afghanistan and Kashmir.
    1. 1.1Chemistry count noun Any of a class of oxides including spinel, containing aluminium and another metal and having the general formula MAl₂O₄.
      〔化〕含尖晶石氧化物
      Example sentencesExamples
      • The spinels have low Mg number in comparison with Alpine-type peridotites, suggesting hydrothermal alteration in which Cr is preferentially retained in spinel.
      • At both Bald Knob and Hutter, rhodonite is absent in samples containing manganese spinels or manganese humites.
      • UCLA's Kyte, who himself favored a fireball origin for the spinels, has measured the chemical composition of hundreds of spinel samples from around the world.
      • We've put meat behind the idea that provided the theoretical basis for understanding the specific compositions of the spinels in terms of the model that they are condensates from the vapor.
      • Examples of coexisting spinels in chemical equilibrium are uncommon at Hutter.

Origin

Early 16th century: from French spinelle, from Italian spinella, diminutive of spina 'thorn'.

Rhymes

Adele, Aix-la-Chapelle, aquarelle, artel, au naturel, bagatelle, béchamel, befell, bell, belle, boatel, Brunel, Cadell, carousel, cartel, cell, Chanel, chanterelle, clientele, Clonmel, compel, Cornell, crime passionnel, dell, demoiselle, dispel, dwell, el, ell, Estelle, excel, expel, farewell, fell, Fidel, fontanelle, foretell, Gabrielle, gazelle, gel, Giselle, hell, hotel, impel, knell, lapel, mademoiselle, maître d'hôtel, Manuel, marcel, matériel, mesdemoiselles, Michel, Michelle, Miguel, misspell, morel, moschatel, Moselle, motel, muscatel, nacelle, Nell, Nobel, Noel, organelle, outsell, Parnell, pell-mell, personnel, propel, quell, quenelle, rappel, Raquel, Ravel, rebel, repel, Rochelle, Sahel, sardelle, sell, shell, show-and-tell, smell, Snell, spell, swell, tell, undersell, vielle, villanelle, well, yell

Definition of spinel in US English:

spinel

nounspəˈnɛlspəˈnel
  • 1A hard glassy mineral occurring as octahedral crystals of variable color and consisting chiefly of magnesium and aluminum oxides.

    尖晶石

    Example sentencesExamples
    • Dark pink and crimson-red colors are added to the display by the presence of spinels and pyropealmandine garnets.
    • Rubies were found in Burma and Ceylon, topaz, beryl, garnet, amethyst and pearl in Ceylon and Southern India, and spinels and deep blue sapphires in Afghanistan and Kashmir.
    • His collection includes emeralds and spinels of a staggering size (some of them are nearly 300 carats).
    • Legendary for its blood-red rubies and spinels, the Mogok stone tract of northern Myanmar also produces an amazing array of other minerals.
    • Even the famous Black Prince Ruby in the British Imperial State Crown is actually a spinel, not a ruby.
    1. 1.1Chemistry Any of a class of oxides including this, containing aluminum and another metal and having the general formula MAl₂O₄.
      〔化〕含尖晶石氧化物
      Example sentencesExamples
      • We've put meat behind the idea that provided the theoretical basis for understanding the specific compositions of the spinels in terms of the model that they are condensates from the vapor.
      • UCLA's Kyte, who himself favored a fireball origin for the spinels, has measured the chemical composition of hundreds of spinel samples from around the world.
      • Examples of coexisting spinels in chemical equilibrium are uncommon at Hutter.
      • The spinels have low Mg number in comparison with Alpine-type peridotites, suggesting hydrothermal alteration in which Cr is preferentially retained in spinel.
      • At both Bald Knob and Hutter, rhodonite is absent in samples containing manganese spinels or manganese humites.

Origin

Early 16th century: from French spinelle, from Italian spinella, diminutive of spina ‘thorn’.

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