Aa meaning

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Lava having a rough surface.
noun
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Alcoholics Anonymous.
abbreviation
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A type of basaltic rock, usually dark-colored with a jagged surface, formed in large sheets from slow-moving lava.
noun
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(bible) Acts of the Apostles.
abbreviation
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Antiaircraft.
abbreviation
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Alcoholics Anonymous.
abbreviation
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(1) (Auto Answer) See modem.
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Associate in Arts.
abbreviation
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Antiaircraft.
abbreviation
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Associate in (or of) Arts.
abbreviation
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A type of lava having a rough, jagged surface. It is relatively slow moving in its molten state, advancing in the form of massive blocks with fissured and angular surfaces that ride on a viscous interior. The blocks range in size between the size of a football and the size of a house.
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(metrology) Symbol for the attoampere, an SI unit of electrical current equal to 10−18 amperes.
symbol
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Alternative spelling of açai.
noun
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Origin of aa

  • Hawaiian ‘a‘ā to burn, aa

    From American Heritage Dictionary of the English Language, 5th Edition