This is the 12179th most frequent Portuguese word.
respiratórios
"Respiratórios" translates to "respiratory," referring to anything related to breathing or the respiratory system.
In this sentence, the word 'respiratórios' is used as an adjective describing the systems that pertain to the respiration process.
Os sistemas respiratórios dos mamíferos são bastante eficientes.
The respiratory systems of mammals are quite efficient.
Here, 'respiratórios' is used to characterize exercises that are related to breathing and respiratory functions.
Exercícios respiratórios ajudam a melhorar a capacidade pulmonar.
Respiratory exercises help to improve lung capacity.
In this instance, 'respiratórios' serves to define problems associated with the respiratory system.