俵形

1. Origins, structure, and basic meaning

• Structure: 俵形, read たわらがた, means a rounded cylindrical shape resembling a rice bale.
• Basic usage: It is used when shaping rice or clay into an elongated, rounded form.
  • 弁当には俵形に握ったご飯が三つ入っていた。

2. Common pitfalls and similar expressions

• Shape compared with 球形
  • 球形 is a ball-like shape, while 俵形 is a rounded cylinder with a lengthwise axis.