Englishfor English speakers
integral
Adjective
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Integral parts, elements, etc. belong to a larger whole, often being necessary.
The parks and green spaces are an integral part of the city.
Regular training is regarded as integral to management.
Integral to this research was how the healthy body defends against bacteria.
integral
Noun
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An integral is the result of a particular mathematical function.
mathF(x)/math is the integral of mathf(x)/math if math\frac{d[F(x)]}{dx} = f(x)/math .
expression
Noun
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An expression is a group of words, like a phrase or sentence, often one that is used by many people.
"Read between the lines" is a common expression for knowing meanings that are not written or spoken.
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An expression is a group of numbers and variables.
The expression "2x + y - 3" was set equal eight in the equation.