noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The nucleus of a cell.
2. 2
   a part of the cell containing DNA and RNA and responsible for growth and reproduction wordnet

Synonyms

All synonyms

cell nucleusnucleusnucleus

Etymology

From the Ancient Greek κάρυον (káruon, “nut, kernel”).

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