opaque

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So that space, number, continuity, and every other elementary intuition remains at bottom opaque--opaque, that is, to mathematical science; for it is no paradox, but an obvious necessity, that the data of a logical operation should not be producible by its workings.

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American Heritage Dictionary (6)

  1. adjective Impenetrable by light; neither transparent nor translucent.
  2. adjective Not reflecting light; having no luster: an opaque finish.
  3. adjective Impenetrable by a form of radiant energy other than visible light: a chemical solution opaque to x-rays.

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  • His cache du sex was opaque, as was the custom, and his upper garment of silver and copper-colored threads concealed little despite covering him from neck to ankles. —  Voyage To The City Of The Dead
  • The people we found to be utterly opaque, and would either stare at us or ignore us. —  Last Chance to See
  • The force-shielded dome had once again been rendered opaque, the party was over, the diners were leaving, Zarquon had vanished along with the rest of the Universe, the Time Turbines were preparing to pull the Restaurant back across the brink of time in readiness for the lunch sitting, and Max Quordlepleen was back in his small curtained dressing room trying to raise his agent on the tempophone. —  The Restaurant at the End of the Universe
  • So that space, number, continuity, and every other elementary intuition remains at bottom opaque--opaque, that is, to mathematical science; for it is no paradox, but an obvious necessity, that the data of a logical operation should not be producible by its workings. —  The Life of Reason
  • So that space, number, continuity, and every other elementary intuition remains at bottom opaque -- opaque, that is, to mathematical science; for it is no paradox, but an obvious necessity, that the data of a logical operation should not be producible by its workings. —  The Life of Reason
 

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Opaque has been looked up 680 times, favorited 0 times, listed 54 times, commented on once, and has a Scrabble score of 17.

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View all »Etymologies (4)

American Heritage Dictionary (1)

  1. Middle English opake, shady, and French opaque, opaque (from Old French, shady), both from Latin opācus.

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Pronunciations

/ (ō-pākˈ)/
by American Heritage Dictionary

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