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Black hole
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Furo
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Meridian of a celestial body
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Game reserve
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Educational software
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Pelecaniformes
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Aquifer
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W3C
-
Java
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Cuticle
-
Soma
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Retrovirus
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Chondrosarcoma
-
Ulysses
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ITU
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Dolby Digital 5.1
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Diester
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Reduced substance
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Emphysema
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Encryption
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Ammon's horn
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Super-Earth
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Sedna
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Noise
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Claudication
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Coprostanol
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Dolby Prologic
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Germ cell
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Ginkgo
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Palliative
pH
Hydrogen potential. pH is an index measuring the hydrogen ion activity in a solution. It is an indicator of the acidity (pH lower than 7) or alkalinity (pH higher than 7) of a solution.
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