reducer vs rundown

reducer

noun
  • Something that reduces. 

  • A reducing agent. 

  • A liquid used in the process of developing a negative to reduce its darkness. 

  • A function that takes state and action as arguments and returns the next state of the app. 

  • A hydraulic device for reducing pressure and hence increasing movement, used to transmit the load from the hydraulic support of the lower shackle to the lever weighing apparatus in some kinds of heavy testing machine. 

  • A component used to connect two pipes of different bores. 

rundown

noun
  • A reduction, e.g. of an activity, or in the size of something, such as a fleet. 

  • A Caribbean stew of meat or fish (typically mackerel) with reduced coconut milk, yam, tomato, onion and seasonings. 

  • A rough outline of a topic or situation. 

  • A summary of the horses to be raced on a particular day, with their weights, jockeys, odds, etc. 

  • A defensive play in which the runner is caught between two fielders, who steadily converge to tag the runner out. 

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