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Mullerian mimicry
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Certificate
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Cheiropompholyx
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Medical team
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Ramsar Convention
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Fibromyalgia
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Half-Life
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Rafter
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Relatively prime numbers
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Macrolide
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Sierra
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Emission spectrometry
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Allanite
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PFS
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Boson
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Herpes
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Eusocial
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Xbox 360
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IP protection index
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Artichoke
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Precession-nutation
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Self-palpation
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Tundra
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Cryosphere
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Sea ice
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Tautomerism
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Adsorption
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Synchronous
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Urine M&C
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Carbene
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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