Coined 1888 from Greek 'chroma' (color) + 'soma' (body) — named because they absorb dyes and appear vividly stained.
A thread-like structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information.
Coined in 1888 by German anatomist Heinrich Wilhelm Waldeyer from Greek 'chrōma' (color, skin, complexion) + 'sōma' (body). Greek 'chrōma' derives from PIE *gʰer- (to rub, to smear), the same root that gives 'chroma,' 'chromatic,' and ultimately English 'grime' via Germanic. Greek 'sōma' (body) is from PIE *tkey- or possibly a pre-Greek substrate word; it is the source of 'somatic,' 'psychosomatic,' and
Chromosomes are 'colored bodies' — named purely for how they look under a microscope after staining. Without dye, they're invisible. The name tells us nothing about their function (carrying genetic information) — it only describes their most superficial property: they absorb stain well. It's as if we named the brain