01 n. That which enters into a compound, or is a component part of any combination, recipe, or mixture; an element; a constituent.
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That which enters into a compound, or is a component part of any combination, recipe, or mixture; an element; a constituent.“By way of analysis we may proceed from compounds to ingredients.” — Sir I. Newton.“Water is the chief ingredient in all the animal fluids and solids.” — Arbuthnot.