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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a twofold decrease from
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a twofold decrease from" is correct and usable in written English.
It can be used when describing a reduction in quantity or value that is twice as much as a previous amount. Example: "The company's profits experienced a twofold decrease from last year's figures, indicating a significant downturn."
✓ Grammatically correct
Science
News & Media
Academia
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
1 human-written examples
An equivalent amount of 111In chloride resulted in a twofold decrease from 100±5%5% to 46±4%4% only.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
Moreover, Lisse et al. (2005) reported a twofold decrease in the water sublimation rate from 1983 to 1994, suggesting that the rate of water sublimation in the past was higher than the present rate.
Science
After 24h WLBU-2 exposure, PA-induced IL-1β transcripts from lungs showed a twofold decrease (p<0.05), while TNF-α levels were unchanged.
Science
A significant decrease in HER2 phosphorylation was not detected, in contrast with results from the lysate assay in which a twofold decrease was observed.
Science
In brain samples of 5XFAD transgenic mice, a twofold decrease in SREBP1 was found in Western blotting as compared to wild type mice from the same genetic background (Fig 6A).
Science
A twofold decrease of NGB amounts was observed in Hq retinas.
Science
Increased apoptosis and reduced α-SMA staining were observed with complete freeing of the tissues from the posts but not upon removal of the magnet, resulting in a twofold decrease in post stiffness.
Science
Application of a 2 V/cm direct current electric field resulted in approximately a twofold decrease in the cell elasticity and depleted intracellular ATP.
Science
Simultaneously, the air electroconductivity experienced a twofold decrease (Figure 1c).
Science
Microsatellites interrupted by even a single point mutation exhibit a twofold decrease in their mutation rate when compared to pure AC repeats.
Academia
While the formation of biofilms decreased almost by threefolds in Sebox5 and 7, a twofold decrease was evident in Sebox6 (Fig. 2a, b).
Science
Expert writing Tips
Best practice
When using "a twofold decrease from", ensure the context clearly establishes the initial value or baseline from which the decrease is measured. This provides a clear understanding of the magnitude of the reduction.
Common error
Avoid using "a twofold decrease from" without explicitly stating the original value or point of comparison. This can lead to confusion, as the reader may not understand what quantity has been halved.
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a twofold decrease from" functions as a prepositional phrase specifying the magnitude and origin of a reduction. It's used to quantify a reduction that is equivalent to halving a starting value. Ludwig confirms its usability in describing such decreases, as seen in various contexts.
Frequent in
Science
48%
News & Media
29%
Academia
11%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "a twofold decrease from" is a phrase used to describe a reduction equivalent to halving the original value, as confirmed by Ludwig. It serves to provide clarity and precision when quantifying reductions. While considered grammatically correct and usable in various contexts such as science, news, and academia, it's essential to clearly state the baseline value for effective communication. Alternatives such as "a 50% reduction from" or "halved compared with" can be used to express the same concept. Remember to establish a clear baseline for comparison to prevent misunderstanding. Use this phrase to add clarity and precision to your writing, and consider the best practices and common errors to ensure your message is accurately conveyed.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a 50% reduction from
Expresses the twofold decrease as a percentage reduction.
a decline of 50% from
Replaces "decrease" with "decline" and expresses the change as a percentage.
halved compared with
Uses the verb 'halved' to directly indicate the twofold reduction.
a reduction of twofold compared to
Emphasizes the magnitude of the reduction by using 'reduction' instead of 'decrease'.
a fifty percent drop from
Uses 'drop' instead of 'decrease', framing it as a sudden fall.
reduced by half relative to
More formal way of saying something was cut in half.
cut in half compared to
Informal way of saying something was reduced by half
lessened by half from
Replaces "decrease" with "lessened" to indicate a reduction in amount or intensity.
a diminution of twofold from
Diminution is a more formal and less common synonym for decrease.
a depreciation of 50% from
Uses "depreciation" indicating a loss of value.
FAQs
How can I use "a twofold decrease from" in a sentence?
You can use "a twofold decrease from" to describe a reduction that is equivalent to halving the original amount. For example: "The patient experienced "a twofold decrease from" their initial pain levels after the medication."
What are some alternatives to "a twofold decrease from"?
Alternatives include "a 50 percent reduction from", "halved compared with", or "a decline of 50 percent from", which all convey a similar meaning of halving a value.
Is it more appropriate to say "a twofold decrease" or "a decrease of twofold"?
"A twofold decrease" is the more common and natural phrasing. "A decrease of twofold" is less idiomatic. Using ""a twofold decrease from"" clearly indicates the baseline from which the reduction occurs.
Does "a twofold decrease from" imply the same as "a decrease to twofold"?
No, ""a twofold decrease from"" means the value has been halved from the original amount. "A decrease to twofold" would mean the value is now double some implied initial amount, which is a different relationship.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested