noun. a specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape.
- anatomical structure
- complex body part
- body structure
- bodily structure
- Centromer (German)
Example sentences of the word centromere
1. Noun, singular or mass
Chromosomes are divided into two parts with a constriction point in the in the middle which is known as the centromere.
They consist of microtubules that originate from the centrioles, two wheel-shaped bodies located in the centromere area of the cell.
Again in eukaryotes only, each chromosome has a *centromere*, a constricted region of the chromosome at which sister chromatids are joined.