Nut (fruit)

Chestnuts are both botanical and culinary nuts.

A walnut, left, and its seed, right, having been removed from its pericarp.

Korean Pine seeds — unshelled, and shell, above; shelled, below

A nut is a fruit composed of a hard shell and a seed, which is generally edible. In a general context, however, a wide variety of dried seeds are called nuts, but in a botanical context, there is an additional requirement that the shell does not open to release the seed (indehiscent). The translation of "nut" in certain languages frequently requires paraphrases, as the word is ambiguous.

单词	Shell fruit
释义	Shell fruit 英语百科 Nut (fruit) A nut is a fruit composed of a hard shell and a seed, which is generally edible. In a general context, however, a wide variety of dried seeds are called nuts, but in a botanical context, there is an additional requirement that the shell does not open to release the seed (indehiscent). The translation of "nut" in certain languages frequently requires paraphrases, as the word is ambiguous.
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Shell fruit

Nut (fruit)