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DEFINITION: (adjective) So trifling or trivial as to be beneath one's consideration. SYNONYMS: trivial, petty, fiddling, footling, niggling, picayune, piffling, lilliputian, little. USAGE: Because she had only invested a piddling sum of money, she was not worried about the stock's poor performance.

Nast, a US caricaturist and cartoonist, is considered the father of American political cartooning. During the Civil War, Harper's Weekly published the first of Nast's serious political cartoons. His stylized, clever, and forceful illustrations attracted much attention and earned accolades from President Lincoln. His cartoons were also instrumental in breaking up the corrupt NYC Tweed Ring. Nast revived the use of what symbols in his depictions of the US Democratic and Republican parties?

A chemical burn occurs when living tissue is exposed to any of 6 types of chemical substance. Acids, bases, oxidizers, solvents, and reducing agents can all cause chemical burns without the presence of a heat source. Burns may occur right away, though they may not be immediately evident. Symptoms include itching, bleaching or darkening of the skin, burning sensations, trouble breathing, and tissue necrosis. Why are poison control centers an important resource for burn victims?