What is the meaning of throttling?

noun

• The act of suffocating (someone) by constricting the windpipe.
  • usage: "no evidence that the choking was done by the accused"
  • synonyms: choking, strangling, strangulation

verb

• Place limits on (extent or access. )
  • usage: "restrict the use of this parking lot"; "limit the time you can spend with your friends"
  • synonyms: restrict, restrain, trammel, limit, bound, confine, throttle
• Kill by squeezing the throat of so as to cut off the air.
  • usage: "he tried to strangle his opponent"; "A man in Boston has been strangling several dozen prostitutes"
  • synonyms: strangle, strangulate, throttle
• Reduce the air supply.
  • usage: "choke a carburetor"
  • synonyms: choke, throttle