種, 核
the hard, stony kernel of certain fruits, such as peaches, plums, and cherries, containing the seed
:
• Don't forget to remove the stone before eating the plum.
プラムを食べる前に種を取り除くのを忘れないでください。
• Cherry stones are often used in heating pads.
サクランボの種は温熱パッドによく使われます。