Englishfor English speakers
Mercury
Proper Noun
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Mercury is the planet closest to the sun.
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Mercury is a Roman god who was the god of trade, travelers, thieves, profit, commerce, and the messenger of the gods.
mercury
Noun
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Mercury is a type of metal (Hg) that is silver in colour. It is liquid at room temperature.
The patient was taken to hospital after he was poisoned with mercury.
arc
Noun
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An arc is part of a circle.
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Electricity jumping from one place to another. This is very bright and looks like lightning.
arc
Verb
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If something arcs, it makes an electrical curve.
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If something arcs, it goes along a curved path.