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optical disc

n.
1.a disk coated with plastic that can store digital data astiny pits etched in the surface

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Word of the Day

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  • optical device
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  • optical crown
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  • optical bench
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  • optical fiber
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  • cornelia otis skinner
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  • adieu
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  • merchantability
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    Idiom of the Day

    down on (someone)
    to be critical of someone, to be angry at someone
    The girl is down on her friend but I do not know the reason.



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    We use ________ numbers with dates.

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