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circadian rhythm

n.
1.a daily cycle of activity observed in many living organisms

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  • circadian
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  • cira
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  • ciprofloxacin
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  • cinquefoil
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  • cinque
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  • cinnamon vine
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  • cinnamon toast
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  • circaea
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  • circaea alpina
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  • circaea lutetiana
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  • circaetus
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  • circassian
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  • circassian walnut
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  • circinus
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  • circis siliquastrum
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  • evergreen oak
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  • mustela erminea
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  • lead ore
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  • mediated
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  • vascularization
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  • castanea ozarkensis
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  • field of regard
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    Idiom of the Day

    sound off about (something)
    to tell what one knows or thinks in a loud voice
    My friend often sounds off about why he does not like his job.



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    Is that a ________ tree or a birch tree?

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