Moving freely.

(biology) A technique used to sort and classify cells by using fluorescent markers on their surface

The largest measure of air respired from the lungs. / The largest volume of water discharged from a stream or river.

(economics, accounting) A variable whose value depends on a period of time rather than an instant, example being the gross domestic product.

plural of ebb and flow

A flow from something (or somewhere) to something (or somewhere) else / A channel or way by which surplus water can be discharged or allowed to flow off

(physics) The flow of a gas in which the mean free path of its molecules is much longer than the characteristic dimension of the tube etc that it is flowing through.

plural of pyroclastic flow

plural of Knudsen flow

A part of a flow cytometer in which a stream of cells is aligned to pass one at a time through a light beam