Cell Component
centromere Audio
cen·tro·mere [ sen-truh-meer ]
Subclass of:
Chromosome Structures
Definitions related to centromere:
  • Clear constricted portion of the chromosome at which the chromatids are joined and by which the chromosome is attached to the spindle during cell division.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • The clear constricted portion of the chromosome at which the chromatids are joined and by which the chromosome is attached to the spindle during cell division.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • The nonstaining primary constriction of a chromosome which is the point of attachment of the spindle fiber; provides the mechanism of chromosome movement during cell division; the centromere divides the chromosome into two arms, and its position is constant for a specific chromosome: near one end (acrocentric), near the center (metacentric), or between (submetacentric).
    NCI
    U.S. National Cancer Institute, 2021
  • Centromere, structure in a chromosome that holds together the two chromatids (the daughter strands of a replicated chromosome). The centromere is the point of attachment of the kinetochore, a structure to which the microtubules of the mitotic spindle become anchored. The spindle is the structure...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2025
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