karyosome

noun

kar·yo·some ˈker-ē-ə-ˌsōm

ˈka-rē-

: a mass of chromatin in a cell nucleus that resembles a nucleolus

Word History

Etymology

International Scientific Vocabulary

First Known Use

1889, in the meaning defined above

Time Traveler

The first known use of karyosome was in 1889

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“Karyosome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/karyosome. Accessed 30 Jun. 2025.

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Medical Definition

karyosome

noun

kar·yo·some ˈkar-ē-ə-ˌsōm

: a mass of chromatin in a cell nucleus that resembles a nucleolus

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