Wheeze

Part of speech: noun (n.)

1. A piping or whistling sound caused by difficult respiration.

2. An ordinary whisper exaggerated so as to produce the hoarse sound known as the "stage whisper." It is a forcible whisper with some admixture of tone.

Part of speech: verb (v.)

To breathe hard, and with an audible piping or whistling sound, as persons affected with asthma. "Wheezing lungs." Shak.