used as a stimulant to the nervous system and as an appetite suppressant n a piece of calcite or a similar substance, usually in the shape of a crayon, that is used to write or draw on blackboards or other flat surfaces v write, draw, or trace with chalk
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used as a stimulant to the nervous system and as an appetite suppressant n a hand tool consisting of a rotating shaft with parallel handle v travel along a zigzag path v start by cranking v rotate with a crank v fasten with a crank v bend into the shape of a crank
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used as a stimulant to the nervous system and as an appetite suppressant n a mirror
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used as a stimulant to the nervous system and as an appetite suppressant n a heat engine in which combustion occurs inside the engine rather than in a separate furnace
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used as a stimulant to the nervous system and as an appetite suppressant