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Nut (fruit)
in botany, type of dry indehiscent fruit / From Wikipedia, the free encyclopedia
A nut is a hard-shelled fruit of some plants. They are an important part of the diet. Many dried seeds and fruits are called 'nuts' in English, but only some are nuts to a botanist.
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Nuts are made of the seed and the fruit. Most seeds come from fruits, and the seeds are released from the fruit. But nuts have a stony fruit wall which keeps the seed inside.