そうにゅう

挿入

表記・読み：插入・そうにゅう

1. 1

   insertion; interposition; interpolation; infixing; (sexual) penetration

   名詞noun or participle which takes the aux. verb suru他動詞
2. 2

   interpolation

   名詞mathematics
3. 3

   infix

   名詞grammar