pointer vs trigger finger

pointer

noun
  • A teacher's pointer, pointing stick, a rod with an arrow. 

  • Anything that points or is used for pointing. 

  • A variable that holds the address of a memory location where a value can be stored. 

  • A needle-like component of a timepiece or measuring device that indicates the time or the current reading of the device. 

  • A breed of hunting dog, trained to point out game. 

  • A tip, a bit of advice. 

  • An icon that indicates the position of the pointing device, such as a mouse. 

  • Something worth a given number of points. 

  • Something that gives a point (sharp end) to something. 

trigger finger

noun
  • a finger used in pulling the trigger of a firearm 

  • the forefinger 

  • difficulty encountered in finger flexion or extension caused by the narrowing of the sheath that surrounds that finger's tendon 

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