flow

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flow

a measurement of quantity over a specified period of time. Unlike a STOCK, which is not a function of time, a flow measures quantity passing per minute, hour, day or whatever. A common analogy is to a reservoir. The water entering and leaving the reservoir is a flow but the water actually in the reservoir at any one point in time is a stock. INCOME is a flow but WEALTH is a stock.
Collins Dictionary of Economics, 4th ed. © C. Pass, B. Lowes, L. Davies 2005
References in classic literature ?
But if it be asked how it happens that the blood in the veins, flowing in this way continually into the heart, is not exhausted, and why the arteries do not become too full, since all the blood which passes through the heart flows into them, I need only mention in reply what has been written by a physician 1 of England, who has the honor of having broken the ice on this subject, and of having been the first to teach that there are many small passages at the extremities of the arteries, through which the blood received by them from the heart passes into the small branches of the veins, whence it again returns to the heart; so that its course amounts precisely to a perpetual circulation.
But there are many other circumstances which evince that what I have alleged is the true cause of the motion of the blood: thus, in the first place, the difference that is observed between the blood which flows from the veins, and that from the arteries, can only arise from this, that being rarefied, and, as it were, distilled by passing through the heart, it is thinner, and more vivid, and warmer immediately after leaving the heart, in other words, when in the arteries, than it was a short time before passing into either, in other words, when it was in the veins; and if attention be given, it will be found that this difference is very marked only in the neighborhood of the heart; and is not so evident in parts more remote from it.
When the frost comes out in the spring, and even in a thawing day in the winter, the sand begins to flow down the slopes like lava, sometimes bursting out through the snow and overflowing it where no sand was to be seen before.
Internally, whether in the globe or animal body, it is a moist thick lobe, a word especially applicable to the liver and lungs and the leaves of fat (jnai, labor, lapsus, to flow or slip downward, a lapsing; jiais, globus, lobe, globe; also lap, flap, and many other words); externally a dry thin leaf, even as the f and v are a pressed and dried b.
The Quadling man had to hold the log craft fast while they took their places, and the flow of the river was so powerful that it nearly tore the raft from his hands.
After passing the wall of water the current did not change or flow backward any more but continued to sweep them steadily forward.
907-911) And Eurynome, the daughter of Ocean, beautiful in form, bare him three fair-cheeked Charites (Graces), Aglaea, and Euphrosyne, and lovely Thaleia, from whose eyes as they glanced flowed love that unnerves the limbs: and beautiful is their glance beneath their brows.
There were signs of a surface that had shifted often as the rains poured a flow of rich eroded soil from above over the lip of the canon.
Vanstone, I suppose?" said Miss Garth, interrupting the stranger's flow of language, which, all things considered, was beginning, in her opinion, to flow rather freely.
And yet must I learn to approach thee more modestly: far too violently doth my heart still flow towards thee:--
But, ungrateful as the task was, we set about it with exemplary patience, and after a snail-like progress of an hour or more, had scaled perhaps one half of the distance, when the fever which had left me for a while returned with such violence, and accompanied by so raging a thirst, that it required all the entreaties of Toby to prevent me from losing all the fruits of my late exertion, by precipitating myself madly down the cliffs we had just climbed, in quest of the water which flowed so temptingly at their base.
This bottom, inclined at an angle of 25 degrees, allowed the metal to flow into the receiving troughs; and the 1,200 converging trenches carried the molten metal down to the central well.