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ni
a hard malleable ductile silvery metallic element that is resistant to corrosion, used in alloys, occurs in pentlandite and smaltite and garnierite and millerite
pascal
French mathematician and philosopher and Jansenist, invented an adding machine, contributed (with Fermat) to the theory of probability (1623-1662)
plumb
exactly
hard news
news that deals with serious topics or events
undulation
wavelike motion, a gentle rising and falling in the manner of waves

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