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Science News Archive - August 25, 2004

Just one billionth of a gram of this substance has the potential for causing an irritating skin rash in some individuals, though 100 times that amount is the average for most people.

Word of the Day
cassation
  • The abrogation of a law by a higher authority; annulment.
  • In music, during the eighteenth century, a song or an instrumental piece similar to the serenade, intended for performance in the open air.
The word 'cassation' comes from the French 'cassation', from Latin 'casso' ("destroy, annul").
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