centrifugal vs dropout

centrifugal

noun
  • A rotating machine used to separate massecuite into sugar crystals and molasses. 

adj
  • Tending, or causing, to recede from the center. 

  • Expanding first at the summit, and later at the base, as a flower cluster. 

  • Having the radicle turned toward the sides of the fruit, as some embryos. 

dropout

noun
  • The slot in the frame that accepts the axles of the wheels. 

  • A technique for regularizing a neural network by discarding a random subset of its units. 

  • Someone who has opted out of conventional society. 

  • One who suddenly leaves anything, or the act of doing so. 

  • Someone who has left an educational institution without completing the course 

  • A damaged portion of a tape or disk, causing a brief omission of audio, video, or data. 

  • Momentary loss of an electronic signal. 

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