cilium vs tendril

cilium

noun
  • One of the fine hairs along an insect's wing. 

  • An eyelash. 

  • A short microscopic hairlike organelle projecting from a eukaryotic cell (such as a unicellular organism or one cell of a multicelled organism) which serve either for propulsion by causing currents in the surrounding fluid or as sensors. 

  • Hairs or similar protrusions along the margin of an organ. 

tendril

noun
  • A hair-like tentacle. 

  • A thin, spirally coiling stem that attaches a plant to its support. 

adj
  • Having the shape or properties of a tendril; thin and coiling; entwining. 

How often have the words cilium and tendril occurred in a corpus of books? (source: Google Ngram Viewer )