Ideographic: The color of the sap 一 of some trees 木Radical:

meaning for zhū:

  • - cinnabar
  • - see 朱砂
  • - vermilionvermilioncinnabar
  • - mercuric sulfide HgS
  • - also written 朱砂 cinnabar
  • - mercuric sulfide HgSVermilion Bird (the seven mansions of the south sky)Yang Zhu (c. 440-360 BC), Chinese philosopher advocating ethical egoism