is expressed as a

USAGE SUMMARY

The phrase "is expressed as a" is correct and usable in written English.
You can use it when defining or describing something in terms of its representation or formulation. Example: "The mathematical constant pi is expressed as a ratio of the circumference of a circle to its diameter."

✓ Grammatically correct

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Is it significant that the slogan is expressed as a sum - in effect, X + 0 = X?

The Guardian - Arts

The match is expressed as a percentage.

The New Yorker

Tranquillity is expressed as a horizontal line.

The Washington Post

First, Vega is expressed as a dollar change.

Stanford University

The figure is expressed as a proportion of men's earnings.

The Guardian

The air-gap permeance is expressed as a Fourier series.

Journal of Sound and Vibration

The solvent composition is expressed as a P2O5 concentration.

Polymer

Em° is expressed as a function of temperature.

Electrochimica Acta

DM2 is expressed as a single transcript in adult flies.

Insect Biochemistry and Molecular Biology

A 401(k) balance, by contrast, is expressed as a simple amount in dollars.

The New York Times

Each value is expressed as a number on its own arbitrary scale, like 0 to 200.

The New York Times - Magazine

Expert writing Tips

Best practice

When using "is expressed as a", ensure that the subsequent noun phrase accurately reflects the way something is represented or formulated. Be precise in your description to avoid ambiguity.

Common error

Avoid using "is expressed as a" with overly general or ambiguous terms. Ensure the description following the phrase provides sufficient detail and clarity to avoid confusion.

Linguistic Context

The phrase "is expressed as a" functions as a descriptor, specifying how something is represented or formulated. Ludwig AI confirms its correctness. It commonly precedes a noun phrase that provides further clarification or explanation.

Expression frequency: Very common

Frequent in

Science

62%

News & Media

20%

Academia

5%

Less common in

Encyclopedias

2%

Formal & Business

2%

Reference

0%

Ludwig's WRAP-UP

The phrase "is expressed as a" serves as a clear and concise way to indicate how something is represented or formulated. As Ludwig AI confirms, it's grammatically correct and widely used. It's particularly prevalent in scientific, academic, and technical contexts. The phrase is frequently used in contexts where precise definitions and formulations are important. When employing the phrase, ensure that the subsequent description is clear and accurate. Some viable alternatives, depending on the context, include "is represented by", "is defined as", and "is formulated as".

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

is represented by

Focuses on visual or symbolic representation rather than a formal expression.

is formulated as

Emphasizes the structured or systematic form of the expression.

is defined as

Highlights the act of giving a precise meaning or explanation.

is characterized by

Focuses on the attributes or features that define something.

is denoted by

Suggests a symbolic or notational representation.

is written as

Implies a written or textual representation.

is equivalent to

Indicates that two things have the same value or meaning.

is translated into

Emphasizes the conversion from one form to another.

is understood as

Focuses on the interpretation or comprehension of something.

is conveyed through

Highlights the means by which something is communicated.

FAQs

How to use "is expressed as a" in a sentence?

The phrase "is expressed as a" is used to define or describe how something is represented, formulated, or conveyed. For example, "The mathematical constant pi "is expressed as a ratio" of a circle's circumference to its diameter."

What can I say instead of "is expressed as a"?

You can use alternatives like "is represented by", "is defined as", or "is formulated as" depending on the context.

Which is correct, "is expressed as a" or "is expressed by a"?

"Is expressed as a" is generally preferred when you're describing something in terms of its representation or formulation. "Is expressed by a" might be used when indicating the agent or means through which something is expressed, but it's less common.

What's the difference between "is expressed as a" and "is characterized by"?

"Is expressed as a" focuses on the representation or formulation of something, whereas "is characterized by" emphasizes the attributes or features that define it. They are similar, but focus on different aspects.