cilium vs tuft

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. 

tuft

noun
  • A bunch of feathers, grass or hair, etc., held together at the base. 

  • A small clump of trees or bushes. 

  • A gold tassel on the cap worn by titled undergraduates at English universities. 

  • A person entitled to wear such a tassel. 

  • A cluster of threads drawn tightly through upholstery, a mattress or a quilt, etc., to secure and strengthen the padding. 

verb
  • To form into tufts. 

  • To secure and strengthen (a mattress, quilt, etc.) with tufts. This hinders the stuffing from moving. 

  • To be formed into tufts. 

  • To provide or decorate with a tuft or tufts. 

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