: : Def. [[--- inition]] : :

So what is Ingredient Substitution?

Ingredient :
n.
An element in a mixture or compound

Substitution :
n.
1.
a) The act or an instance of substituting.
b) The state of being substituted.
2. One that is substituted; a replacement.

Okay, so we have : : an element in a mixture or compound : : that is substituted; replaced ::

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