Correct

渣滓

/ zhāzǐ / 
Strokes

Definition

residue/dregs/disreputable people

Example

As a Noun

dregs; sediment; residue; lees

1
Róngyè
溶液
de
的
zhāzǐ
渣滓

dregs of a solution

As a Noun

dregs; riff-raff

2
Nǐmen
你们
zhèxiē
这些
zhāzǐ
渣滓
  
!

You scum!

3
Shèhuì
社会
zhāzǐ
渣滓

dregs of society; social outcast