This noun has two meanings. One can refer to a part of our body, and the other can refer to a kind of vegetables.

回复 @Omar：Good guess but wrong. You cannot find any body part from the spelling of this word.

回复 @圆环之理：I looked up dictionary and found "I got beaned", which means "My head was hit". Maybe you said that. However, that's not the word I think.

回复 @圆环之理：Welp... when related to part of our body, it will conbine with "bone" to refer to something in bones.

回复 @圆环之理：this word has 6 letters.

回复 @圆环之理：green

回复 @浅风仁樱：If this question is so difficult that there is no correct answer until December 5, I'll reveal it.

回复 @三叶草：in a long and round form.

The answer is marrow

1.a soft substance that fills the hollow parts of bones

2.a large, long vegetable that grows on the ground. Marrows have dark green skin and are white inside.