lower boundary

USAGE SUMMARY

"lower boundary" is a correct and usable term in written English.
It is commonly used in mathematics and science to refer to the lowest value of a range of numbers. For example, you might say: "The lower boundary for this temperature range is 0 degrees Celsius."

✓ Grammatically correct

Science

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

An index of 30 is considered the lower boundary of obesity.

The New York Times - Health

The lower boundary of the Ordovician System indirectly defines the upper boundary of the Cambrian System.

Encyclopedia Britannica

The lower boundary of the magnetosphere is several hundred kilometres above the Earth's surface.

Encyclopedia Britannica

The thin surface rock layer surrounding the mantle is the crust, whose lower boundary is called the Mohorovičić discontinuity.

Encyclopedia Britannica

Dr. Balling projects a warming just shy of 1 degree for the next 50 years, not out of line with the United Nations panel's lower boundary.

The New York Times - Science

Usually, we assume lower boundary.

Advances in Difference Equations

Its lower boundary is sharp.

Earth, Planets and Space

The lower boundary is poorly resolved.

Earth, Planets and Space

The lower boundary is the Ph.D. defense.

Journal of the Brazilian Computer Society

Likewise, the lower boundary was fixed in both directions.

Environmental Systems Research

The lower boundary of this unit is uneven and erosional.

Earth, Planets and Space

Expert writing Tips

Best practice

When describing statistical data, clearly define the "lower boundary" to ensure accurate interpretation and avoid ambiguity in the data range.

Common error

Avoid using the "lower boundary" as a substitute for the average or expected value. The "lower boundary" represents a minimum, while the average reflects a central tendency.

Linguistic Context

The phrase "lower boundary" functions primarily as a noun phrase, defining the minimum or lowest limit of a range or set of values. It's frequently used to specify the lower extent of something, as seen in Ludwig's examples across different domains.

Expression frequency: Very common

Frequent in

Science

74%

News & Media

14%

Encyclopedias

6%

Less common in

Wiki

3%

Formal & Business

3%

Reference

0%

Ludwig's WRAP-UP

The phrase "lower boundary" is a common and grammatically sound term used to define the minimum value within a range or dataset. Ludwig AI confirms its validity and widespread use across academic, scientific, and journalistic contexts. As Ludwig's examples show, the phrase is especially prevalent in scientific and technical discussions, highlighting its role in setting precise parameters. While alternatives like "lower limit" and "minimum threshold" exist, "lower boundary" remains a clear and versatile choice for specifying a minimum extent or value.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

lower bound

A synonym of "lower boundary", maintaining nearly identical meaning but slightly emphasizing the constraint.

lower limit

Replaces "boundary" with "limit", emphasizing the restrictive nature of the minimum value.

minimum bound

Replaces boundary with bound, stressing that it is the lowest value permitted

minimum threshold

Substitutes "lower" with "minimum" and "boundary" with "threshold", focusing on the acceptable level.

bottom end

Uses more informal language to indicate the lowest part of a range.

lowest extent

Replaces "boundary" with "extent", focusing on the degree to which something reaches.

floor value

Emphasizes that the "lower boundary" acts as a "floor", with no values falling beneath it.

base level

Uses "base level" to denote the lowest or foundational value in a given context.

minimal range

Focuses on the range aspect and specifies the "minimal" acceptable values.

least value

Emphasizes the minimal quantity or importance of the "lower boundary".

FAQs

How is the "lower boundary" used in statistics?

In statistics, the "lower boundary" defines the minimum value of a dataset or range, helping to establish confidence intervals and understand the data's limitations. Confidence intervals often report both upper and "upper boundary".

What's the difference between a "lower boundary" and a "threshold"?

A "lower boundary" specifies the minimum acceptable or possible value, while a "threshold" is a specific point that, when crossed, triggers a change or action. The "lower boundary" indicates the lowest limit, and the "threshold" is a trigger point.

What can I use instead of saying "lower boundary"?

Depending on the context, you can use alternatives like "lower limit", "minimum threshold", or "bottom end" to convey a similar meaning.

How do I determine the "lower boundary" in a data set?

The "lower boundary" in a data set is typically identified as the smallest value within the set, or a predefined minimum value set by specific criteria or context. You can also determine this using statistical methods to find the confidence interval limits.