Function: adjective
Date: 1950
: of, affecting, or being the part of the respiratory system that includes the nose, nasal passages, and nasopharynx < upper respiratory tract> < upper respiratory infection>
Function: adjective
Date: 1950
: of, affecting, or being the part of the respiratory system that includes the nose, nasal passages, and nasopharynx < upper respiratory tract> < upper respiratory infection>
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012