susbstituted

"Substituted" is the past tense and past participle of the verb "substitute," which means to replace one thing with another. This term is commonly used in various contexts, including mathematics, chemistry, and everyday language.

In mathematics, substitution refers to the process of replacing a variable in an expression with a specific value. For example, in the equation y = 2x + 3, substituting x = 5 results in y = 2(5) + 3 = 13. This technique is fundamental in solving equations and understanding functions.

In chemistry, substitution reactions involve the replacement of one functional group in a molecule with another. For instance, in the substitution of a chlorine atom in a hydrocarbon with a hydroxyl group, the resulting compound is an alcohol. This type of reaction is crucial in organic chemistry for synthesizing various compounds.

In everyday language, "substituted" can mean that one person or thing has been replaced by another. For example, if a teacher is substituted by another due to illness, it means the original teacher has been replaced temporarily.

The term "substituted" can also refer to the act of replacing one substance with another, often for health or performance reasons. For instance, a doctor might prescribe a substituted medication for a patient who is allergic to a particular drug.

Overall, "substituted" is a versatile term that conveys the idea of replacement or exchange, applicable in various fields and contexts.