vibration in the rotor of a helicopter due to differential drag

(medicine) An instrument that monitors the peak expiratory flow rate of air from a person's bronchi; used to manage asthma.

A type of flow chart; a description of data and the manual and machine processing performed on the data as it moves and changes from one stage to the next. It also includes the locations where the data are placed in permanent storage (disk, tape, etc.)

(business) A measure of a company's financial performance, calculated as Net income plus depreciation and amortization, less changes in working capital, less capital expenditure.

plural of data flow diagram

plural of peak flow meter

plural of transverse flow effect

(medicine) The blood supply to the brain in a given period of time.

plural of lateral flow test

Any of various simple tests for the presence of a substance in a body fluid