Organic Chemical
chromatin Audio
chro·ma·tin [ kroh-muh-tin ]
Subclass of:
Chromosome Structures; Nucleoproteins
Etymology:
Greek chroma = color + -in
Flemming (1843-1905) gave the name to the stainable netlike substance of the cell.
Definitions related to chromatin:
  • Complex of nucleic acids (RNA and DNA) and proteins comprising eukaryotic chromosomes.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • The genetic material of the nucleus, consisting of deoxyribonucleoprotein, which occurs in two forms during the phase between mitotic divisions: 1) as heterochromatin, seen as condensed, readily stainable clumps; 2) as euchromatin, dispersed lightly staining or nonstaining material. During mitotic division the chromatin condenses into chromosomes.
    NCI
    U.S. National Cancer Institute, 2021
  • The material of CHROMOSOMES. It is a complex of DNA; HISTONES; and nonhistone proteins (CHROMOSOMAL PROTEINS, NON-HISTONE) found within the nucleus of a cell.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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