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 ?
There was no moon, but the starlight was clear on the snow.
Antonio, it carries me clear out of myself just to hear you tell it; it must have been perfectly splendid.
I was born free, and that I might live in freedom I chose the solitude of the fields; in the trees of the mountains I find society, the clear waters of the brooks are my mirrors, and to the trees and waters I make known my thoughts and charms.
Here is an express power given, in clear and unambiguous terms, to the State Executives, to fill casual vacancies in the Senate, by temporary appointments; which not only invalidates the supposition, that the clause before considered could have been intended to confer that power upon the President of the United States, but proves that this supposition, destitute as it is even of the merit of plausibility, must have originated in an intention to deceive the people, too palpable to be obscured by sophistry, too atrocious to be palliated by hypocrisy.
I can only trust in God and wait till the fog clears.
The clear blue of the distance faded, and one star after another came out.
But directly she is clear of the narrow seas, heading out into the world with nothing solid to speak of between her and the South Pole, the anchors are got in and the cables disappear from the deck.
If it wasn't for that clear showing of the Lord's will, I should be loath to go, for my heart yearns over my aunt and her little ones, and that poor wandering lamb Hetty Sorrel.
As one who would water his garden leads a stream from some fountain over his plants, and all his ground-spade in hand he clears away the dams to free the channels, and the little stones run rolling round and round with the water as it goes merrily down the bank faster than the man can follow--even so did the river keep catching up with Achilles albeit he was a fleet runner, for the gods are stronger than men.
In the matter of Treason the pig would appear To have aided, but scarcely abetted: While the charge of Insolvency fails, it is clear, If you grant the plea 'never indebted.
ONCE upon a time there was a coffee-planter in India who wished to clear some forest land for coffee-planting.
A thick darkness that clears slowly; anon one enters with a broom making ready the place.