noun
Manchurian walnut
A deciduous tree native to East Asia, producing edible nuts with hard shells. The scientific name is Juglans mandshurica.
オニグルミの実は硬い殻に包まれている。
The fruit of the Manchurian walnut is encased in a hard shell.
公園に大きなオニグルミの木がある。
There is a large Manchurian walnut tree in the park.
The name オニグルミ (onigurumi) literally means 'ogre walnut', likely referring to the hard, tough shell of the nut. The exact origin of the name is uncertain.