Einstein-Rosen bridge vs wormhole

Einstein-Rosen bridge

noun
  • A type of wormhole that is inherently unstable and collapses before any information or matter can pass through. 

wormhole

noun
  • A hole burrowed by a worm. 

  • A location in a monitor program containing the address of a routine, allowing the user to substitute different functionality. 

  • A hypothetical shortcut between two points in spacetime, permitting faster-than-light travel and sometimes time travel. 

verb
  • To make porous or permeable through the formation of small holes or tunnels. 

How often have the words Einstein-Rosen bridge and wormhole occurred in a corpus of books? (source: Google Ngram Viewer )