ecosphere vs precinct

ecosphere

noun
  • the biosphere 

  • The portion of the atmosphere from sea-level to about 4000 meters in which it is possible to breathe without technological assistance. 

precinct

noun
  • The general area surrounding a place, environs. 

  • A pedestrianized and uncovered shopping area. 

  • A subdivision of a city or town for the purposes of voting and representation in city or town government. In cities, precincts may be grouped into wards. 

  • A subdivision of a city under the jurisdiction of a specific group of police; the police station situated in that district. 

  • An enclosed space having defined limits, normally marked by walls. 

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