The best replacement for stridor is wheezing.

The best alternatives to stridor are rated as following:
★★★★★  wheezing
★★★★  stertor
★★  croup
★  crowing
★  rales
★  stridulous
★  snoring
★  stridor
★  sturdor
★  wheeze
★  whooping cough
★  rhonchi
★  sterger
★  grunting
  sturder
  retractions
  struder
  wheezes
  expiratory stridor
  airway obstruction
  strider
  sterdor

Your alternative for stridor is not listed? Suggest!
Speaking about stridor, one probably shouldn't forget about croup.

Other search terms related to stridor and their ratings are:
★★★★★ croup
You have in mind a companion for stridor and it is not yet here? Propose!



Google Trends

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stridor
wheezing
stertor