bottleneck vs occlusive

bottleneck

noun
  • The narrow portion that forms the pouring spout of a bottle; the neck of a bottle. 

  • The part of a process that is too slow or cumbersome. 

  • In traffic, any narrowing of the road, especially resulting in a delay. 

verb
  • To slow by causing a bottleneck. 

  • To form a bottleneck. 

occlusive

noun
  • A product that forms a protective film and traps moisture against the skin. 

  • A phoneme produced by obstructing airflow in the vocal tract, but not necessarily in the nasal tract. 

adj
  • That tends to occlude. 

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