kanji radical 66 (strike radical at right)
Refers specifically to the right-side form of radical 66 (攴/攵), called のぶん or ぼくづくり. Used in kanji like 攻, 放, 教. The cross-reference 攵繞 (のぶんにょう) is a related term for the enclosing variant.
See also: ぼくにょう
The right-hand part of characters like 攻 and 放 is the radical 攵 (nobun).