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planetesimal hypothesis

n.
1.(cosmology) the theory that the solar system was formed by the gravitational accumulation of planetesimals

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Word of the Day

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  • planetesimal
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  • planetary nebula
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  • planetary house
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  • planetary gear
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  • planetary
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  • planetarium
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  • planetal
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  • planet wheel
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  • planet gear
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  • planet
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  • planetoid
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  • plangency
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  • plangent
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  • planimeter
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  • planing machine
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  • plank
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  • plank down
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  • plank over
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  • plank-bed
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  • planking
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  • rattle weed
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  • in stock
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  • inflator
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  • mountain nyala
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  • head count
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  • invincibility
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  • chock-full
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  • genus ravenala
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  • run around
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  • philological
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    Idiom of the Day

    to put it mildly
    to understate something, to say something politely
    To put it mildly, the food at the restaurant was the worst that I have ever tasted.



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    Don’t ________ over past failures.

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