Chromatins

Part of speech: noun

Definitions

1. A complex of DNA and proteins that organize genetic material in eukaryotic cells
2. a term referring to the substance within a cell nucleus that condenses to form chromosomes during cell division
3. the structural framework that plays a crucial role in regulating gene expression and DNA replication

Etymology: Chromatin is the name for the material inside a cell nucleus that carries its genetic information, and it was named for how it looks under a microscope. Its name was coined in German, which borrowed the root "khrôma", the Ancient Greek word for "colour". Scientists were struck by how readily this substance took up dyes, so the name points to staining rather than to any colour the material has in itself. The word is built from two pieces. The first is "chromatic", meaning "of colour", which comes from "khrôma". The second is the suffix "-in", a common chemical ending meaning "substance". Put together, the name means roughly "colour substance", a plain description of a material that stains readily. "Chromatins" is simply the plural form of "chromatin", used when referring to more than one such substance or to distinct forms of it.

Synonyms: genetic material, DNA-protein complex