chemical

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chemical

any substance used in or resulting from a reaction involving changes to atoms or molecules, especially one derived artificially for practical use

chemical

[′kem·i·kəl]
(chemistry)
Related to the science of chemistry.
A substance characterized by definite molecular composition.
References in classic literature ?
Glancing at his hand, in case any of Freddy's chemicals had come off on it, he moved to the writing table.
That our principal movements were known to the First Born I could not have doubted, in view of the attack of the fleet upon us the day before, nor could the stopping of the pumps of Omean at the psychological moment have been due to chance, nor the starting of a chemical combustion within the one corridor through which we were advancing upon the Temple of Issus been due to aught than well-calculated design.
But I do think it would be better if you did your chemical experiments a little later in the day.
The Baron's furnaces and retorts, and other things, were all there to speak for themselves, together with some packages of chemicals, having the name and address of the person who had supplied them plainly visible on their labels.
Behind his counter he was a superior being, calmly conscious of special knowledge and worth; outside he was a weak-kneed, purblind, motorman-cursed rambler, with ill-fitting clothes stained with chemicals and smelling of socotrine aloes and valerianate of ammonia.
I will send you by-and-by a small bill for certain chemicals which I shall order to-morrow.
I generally have chemicals about, and occasionally do experiments.
The doctor had bought the house from the heirs of a celebrated surgeon; and his own tastes being rather chemical than anatomical, had changed the destination of the block at the bottom of the garden.
Would he obtain air by chemical means, in getting by heat the oxygen contained in chlorate of potash, and in absorbing carbonic acid by caustic potash?
The physiology, the chemical rhythm of the creature, may also be made to undergo an enduring modification,--of which vaccination and other methods of inoculation with living or dead matter are examples that will, no doubt, be familiar to you.
But to come to a stop involved the jamming of myself, molecule by molecule, into whatever lay in my way; meant bringing my atoms into such intimate contact with those of the obstacle that a profound chemical reaction--possibly a far-reaching explosion --would result, and blow myself and my apparatus out of all possible dimensions--into the Unknown.
And where it came upon water some chemical action occurred, and the surface would be instantly covered with a powdery scum that sank slowly and made way for more.

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