peak expiratory flow n.
The maximum flow of air at the outset of forced expiration, which is reduced in proportion to the severity of airway obstruction, as in asthma.
- Peak flow meter
peak flow meter n. A portable instrument that detects minute decreases in air flow and that is used by people with asthma to monitor small changes in breathing capacity.
[pee-kee] /ˈpi ki/ adjective, peakier, peakiest. 1. 2 . /ˈpiːkɪ/ adjective -kier, -kiest 1. wan, emaciated, or sickly
[peek] /pik/ verb (used without object) 1. to become weak, thin, and sickly. /piːk/ noun 1. a pointed end, edge, or projection: the peak of a roof 2. the pointed summit of a mountain 3. a mountain with a pointed summit 4. the point of greatest development, strength, etc: the peak of his career 5. […]
- Peak load
noun 1. the maximum load on an electrical power-supply system Compare base load noun the maximum demand for electrical power