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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.


Etymology

Origin of kinetochore

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

A spindle fiber that has attached to a kinetochore is called a kinetochore microtubule.

From Textbooks • Jun. 9, 2022

The kinetochore becomes attached to the mitotic spindle.

From Textbooks • Apr. 25, 2013

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

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