核扩散

• 木(tree; wood)RADICAL
• 亥(pig (12th zodiac sign))PHONETIC

The kernel of a tree fruit (木) sounds like the character for pig (亥).

• 扌(hand; arm)RADICAL
• 广(broad; spacious)PHONETIC

Use your hand to expand space in all directions.

• ⺼(flesh; body)RADICAL
• 攵(hand holding stick; striking action)ASSOCIATIVE
• 散(scatter; disperse)ASSOCIATIVE

A hand holding a stick strikes meat, scattering and dispersing everything in all directions.