名詞 chromatin:

1. the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins; during mitotic division it condenses into chromosomes
   同義詞：chromatin granule

chro.ma.tin

n.（名詞）
A complex of nucleic acids and proteins in the cell nucleus that stains readily with basic dyes and condenses to form chromosomes during cell division.
染色質(zhì)，核染質(zhì)：細(xì)胞核中由核酸與蛋白質(zhì)組成的核酸復(fù)合物，容易被基本染料染色， 在細(xì)胞分裂期會(huì)濃縮而形成染色體

【引伸】
chro.matin.ic
adj.（形容詞）