Etymology

cyclin

C3Y4C3L1I1N1

Today it means: Any of a group of proteins whose presence in a cell varies through its cycle, and that regulates this cycle by forming a complex with kinase Full definition →

English cycle ← Middle English cicle ← Late Latin cyclus
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The story

  1. Proto-Indo-European*kʷelh₁-redup.
  2. Proto-Indo-European*kʷékʷlos
  3. Proto-Hellenic*kʷókʷlos
  4. Proto-Hellenic*kúklos
  5. Ancient Greekκύκλος (kúklos)
  6. Late Latincyclus
  7. Middle Englishcicle
  8. Englishcycle
  9. English todaycyclin

From cycle + -in.

Etymology from Wiktionary, CC BY-SA 4.0.