Peak expiratory flow
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.
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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.
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[pee-kee] /ˈpi ki/ adjective, peakier, peakiest. 1. 2 . /ˈpiːkɪ/ adjective -kier, -kiest 1. wan, emaciated, or sickly
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[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. […]
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noun See congestion pricing