s, a, o, e, p, c, r, t, i, y are letters that make 'respiratory tract'
respirator, OR, PI, RES, tract, IRA, Tory, act, re, ESP, IR, AC, pi, at, respiratory, ira, CT, rat, RA, tor, Ra, Re, Ac, At, Es, Ir are words within 'respiratory tract'
1 possible definitions for 'respiratory tract'
Under this definition, respiratory tract is a noun and has the following properties:
airway has the same meaning as respiratory tract
'respiratory tract' can be a type of tract.
lower respiratory tract, upper respiratory tract are types of 'respiratory tract'.
'respiratory tract' can be a part of respiratory system, systema respiratorium.