kinetochore

American  

[ki-nee-tuh-kawr, -kohr, -net-uh-, kahy-] / kɪˈni təˌkɔr, -ˌkoʊr, -ˈnɛt ə-, kaɪ- /

noun

1. Biology. the place on either side of the centromere to which the spindle fibers are attached during cell division.

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Etymology

Origin of kinetochore

1930–35; kineto- + -chore < Greek chṓros place

Example Sentences

As part of this, we are tackling the open question of how centromeres assemble the kinetochore.

From Science Daily • Mar. 10, 2026

Next, we want to understand how the kinetochore -- the protein machinery that recognizes centromeres -- can accommodate such dramatic changes in centromere DNA over evolutionary time.

From Science Daily • Mar. 10, 2026

The key event in prometaphase I is the attachment of the spindle fiber microtubules to the kinetochore proteins at the centromeres.

From Textbooks • Apr. 25, 2013

The kinetochore becomes attached to the mitotic spindle.

From Textbooks • Apr. 25, 2013

The kinetochore breaks apart and the sister chromatids separate.

From Textbooks • Apr. 25, 2013