#a



English

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    • a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron)
    • Pos: noun
    • any of several fat-soluble vitamins essential for normal vision
    • Pos: noun
    • one of the four nucleotides used in building DNA
    • Pos: noun
    • (biochemistry) purine base found in DNA and RNA
    • Pos: noun
    • the basic unit of electric current adopted under the Systeme International d'Unites
    • Pos: noun
    • the 1st letter of the Roman alphabet
    • Pos: noun
    • the blood group whose red cells carry the A antigen
    • Pos: noun

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فارسی

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    • حرف اول الفباى انگليسى
    • حرف اضافه مثبت

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