IPA: //ˌrɛspaɪrəˈmɛtrɪk//
KK: /rɛsˈpaɪrəˌmɛtrɪk/
Connected to the measurement of breathing or respiration rates.
The respirometric analysis showed a significant increase in lung capacity after the treatment.
Respirometric → It is formed from "respirare" (meaning to breathe) and "metric" (from Greek "metron", meaning measure). The word refers to the measurement of breathing or respiratory activity.
Think of 'breathing' ('respirare') being 'measured' ('metric') — that's what respirometric means.