isochronous vs serial

isochronous

adj
  • Happening at the same time; simultaneous. 

  • Happening at regular intervals; isochronal. 

  • of or pertaining to data associated with time-sensitive applications. 

  • Of or pertaining to the use of clocks derived from the same clock reference. 

serial

adj
  • Who performs a specified action or course of action repeatedly or regularly. 

  • Of or relating to a grammatical aspect relating to an action that is habitual and ongoing. 

  • Published or produced in installments. 

  • Having to do with or arranged in a series. 

noun
  • A work, such as a work of fiction, published in installments, often numbered and without a specified end. 

  • A unit of police officers equipped with shields to tackle a riot. 

  • A publication issued in successive parts, often numbered and with no predetermined end. 

  • A serial number, esp. one required to activate software. 

verb
  • to assign a serial number to (especially of aircraft) 

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