Of, relating to, used in, or affecting respiration.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "respiratory" in a sentence
"And that tells us that he had what we call a respiratory arrest first, not a heart attack or his heart stopping first."
"Quarantine is something that you can use for certain infectious agents, even those transported by what we call the respiratory route or the breathing route, like smallpox or even SARS, that are much less infectious."
"And if you can't get vaccinated, then what you need to do is practice what we call respiratory hygiene or respiratory etiquette -- washing your hands, don't touch your face, nose or eyes."