Micronucleus

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A small nucleus.
  2. 2
    The smaller of the nuclei of a ciliate protozoan (that contains genetic material).

    "These binucleated forms have one macronucleus functional and another sexual micronucleus which is not functional in the ordinary life processes of the species."

Synonyms

All synonyms
nucleus

Example

More examples

"These binucleated forms have one macronucleus functional and another sexual micronucleus which is not functional in the ordinary life processes of the species."

Etymology

From micro- + nucleus.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.