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Aeration   Listen
Aeration  n.  
Exposure to the free action of the air; airing; as, aeration of soil, of spawn, etc.
(Physiol.) A change produced in the blood by exposure to the air in respiration; oxygenation of the blood in respiration; arterialization.
The act or preparation of charging a liquid with carbon dioxide gas to make it effervescent.
The act of charging a liquid with air or oxygen for the purpose of purification.

Collaborative International Dictionary of English 0.48

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"Aeration" Quotes from Famous Books

... Aeration was resorted to, which was performed by dipping up the water, and pouring it back in a thin stream from a height of several feet, continuing the operation for ten minutes. This was repeated four or five times during the day, and at ...
— Atlantic Monthly, Vol. 1, No. 4, February, 1858 • Various

... hence the soil is always made more or less friable, even when it consists of the stiffest clays. The shade furnished by the clover also furthers friability. This friability makes the land easier to work, and it is also more easily penetrated by the roots of plants. The influence on aeration is also marked. The air can more readily penetrate through the interstices in the soil, and, in consequence, chemical changes in the soil favorable to plant ...
— Clovers and How to Grow Them • Thomas Shaw

... scarcity soon led, however, to a careful investigation being made into the conditions under which potassium nitrate was formed in nitre soils.[101] These conditions, which included the presence of rich nitrogenous matter, warmth, free aeration of the soil, and a certain proportion of moisture, became, in the course of years, more and more thoroughly understood, and the result was the institution of numerous "saltpetre plantations." These generally consisted of heaps of mould, rich in nitrogen, mixed ...
— Manures and the principles of manuring • Charles Morton Aikman

... fish to a given area, I think we have never approached the maximum. I should have no hesitation in putting 1000 salmon in the inclosure at Dead Brook, which covers an area of less than 3 acres. Of course the renewal of the water supply, or its aeration by ...
— New England Salmon Hatcheries and Salmon Fisheries in the Late 19th Century • Various

... most at home. The conception can indeed be carried into the Biological and Social Sciences, even in its quantitative form, by making the proper allowances. For the limbs of animals are levers, and act upon mechanical principles; and digestion and the aeration of the blood by breathing are partly chemical processes. There is a quantitative relation between the food a man eats and the amount of work he can do. The numbers of any species of plant or animal depend upon the food supply. The value of a country's imports ...
— Logic - Deductive and Inductive • Carveth Read

Words linked to "Aeration" :   change of state, natural process, aerate, natural action

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