Etymology

pronucleus

P3R1O1N1U1C3L1E1U1S1

Today it means: Either of the two haploid nuclei (of a sperm and ovum) that fuse during fertilization Full definition →

English nucleus ← Latin nucleu ← Proto-Italic *knuks
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The story

  1. Englishpro-
  2. Proto-Italic*knuks
  3. Latinnux
  4. Latinnucleu
  5. Englishnucleus
  6. English todaypronucleus

From pro- + nucleus.

Etymology from Wiktionary, CC BY-SA 4.0.