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Pa |
Also found in: Dictionary/thesaurus, Acronyms, Wikipedia, Hutchinson | 0.09 sec. |
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Pa, symbol for the element protactinium protactinium (prō'tăktĭn`ēəm), radioactive chemical element; symbol Pa; at. no. 91; at. wt. 231.0359; m.p. ..... Click the link for more information. .
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? Mentioned in | ? References in periodicals archive | ||
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| Daily school prayers often were recited by members of the class or led by someone over the public address system. And as competitors began entering the market, the company branched out into new ventures, including in-store broadcasts over a store's public address system. They stood on the back of a stake-side truck with a microphone connected to a public address system. |
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