prickle vs spicule

prickle

noun
  • A small, sharp pointed object, such as a thorn. 

  • A tingling sensation of mild discomfort. 

  • A kind of willow basket. 

verb
  • To feel a prickle. 

  • To cause (someone) to feel a prickle; to prick. 

spicule

noun
  • A sharp, needle-like piece. 

  • A needle-like mating structure found only in male nematodes. 

  • A tiny glass flake formed during the manufacture of glass vials 

  • A small spike of flowers. 

  • A jet of matter ejected from the photosphere of the sun. 

  • Any of many needle-like crystalline structures that provide skeletal support in marine invertebrates like sponges. 

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