rate


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rate

1. 
a. a price or charge with reference to a standard or scale
b. (as modifier): a rate card
2. a charge made per unit for a commodity, service, etc.
3. a wage calculated against a unit of time
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

rate

[rāt]
(science and technology)
The amount of change of some quantity during a time interval divided by the length of the time interval.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in classic literature ?
That there be two rates of usury: the one free, and general for all; the other under license only, to certain persons, and in certain places of merchandizing.
Good observers have estimated that sediment is deposited by the great Mississippi river at the rate of only 600 feet in a hundred thousand years.
But the amount of denudation which the strata have in many places suffered, independently of the rate of accumulation of the degraded matter, probably offers the best evidence of the lapse of time.
When the message rate was fairly well established, Hudson died--fell suddenly to the ground as he was about to step into a railway carriage.
And at the rate of that handsome sum of money per annum, and at no higher rate, you are to live until the donor of the whole appears.
There was talk of all countries putting bounties on children to increase the birth rate, but it was laughed to scorn by the arithmeticians, who pointed out that China was too far in the lead in that direction.
We will do our best, at any rate. It's an awkward time just now to command an absolutely clear line, but if we can once get you past Crewe you'll be all right.
The idea instantly struck me that this (so far as sound went, at any rate) was the English equivalent of Van Brandt.
At any rate, whether we expect another invasion or not, our views of the human future must be greatly modified by these events.
At any rate, it was a harmless eccentricity, and may the god of gales, who took him away so abruptly between New Zealand and the Horn, let his soul rest in some Paradise of true seamen, where no amount of carrying on will ever dismast a ship!
I am aware that these vast bodies of ice do not travel at the same rate of speed; while the Gorner Glacier makes less than an inch a day, the Unter-Aar Glacier makes as much as eight; and still other glaciers are said to go twelve, sixteen, and even twenty inches a day.
At any rate I'll not be as lucky as my master Don Quixote of La Mancha, when he went down into the cave of that enchanted Montesinos, where he found people to make more of him than if he had been in his own house; for it seems he came in for a table laid out and a bed ready made.