latch vs occlusion

latch

noun
  • A fastening for a door that has a bar that fits into a notch or slot, and is lifted by a lever or string from either side. 

  • A breastfeeding baby's connection to the breast. 

  • A lightweight lock to protect internal structures from being modified by multiple concurrent accesses. 

  • An electronic circuit that is like a flip-flop, except that it is level triggered instead of edge triggered. 

verb
  • To catch; lay hold of. 

  • To close or lock as if with a latch. 

occlusion

noun
  • An occluded front. 

  • Anything that obstructs or closes a vessel or canal. 

  • The absorption of a gas or liquid by a substance such as a metal. 

  • A closure within the vocal tract that produces an oral stop or nasal stop. 

  • The blocking of the view of part of an image by another. 

  • The alignment of the teeth when upper and lower jaws are brought together. 

  • The process of occluding, or something that occludes. 

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