Used and loved by millions
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
are either derived from
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "are either derived from" is correct and usable in written English.
It can be used when discussing the origins or sources of something, indicating that there are two or more possibilities. Example: "The theories presented in the paper are either derived from historical events or contemporary studies."
✓ Grammatically correct
Science
Encyclopedias
News & Media
Alternative expressions(4)
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
22 human-written examples
When symbolic images do play a part in modern sculpture, they are either derived from obsolete classical, medieval, and other historical sources or they are private.
Encyclopedias
Other datasets used in this study are either derived from mobile records, or publicly available.
Science
Xenografts are acellular collagen matrices (ACMs) that are either derived from the dermis, pericardium or small intestinal submucosa of animals that are purposely bred in strictly controlled conditions.
Science
VOCs are produced during most metabolic reactions and markers present in exhaled breath are either derived from the lung itself or metabolites diffusing through the epithelium.
Still, pharmacy shelves are chockablock with drugs that are either derived from plants (morphine, from poppies) or inspired by herbal remedies (aspirin, from an ancient willow-bark extract).
News & Media
This review aims to offer a view on tumor targeting peptides that are either derived from natural peptide ligands or identified using phage display screening.
Human-verified similar examples from authoritative sources
Similar Expressions
38 human-written examples
The alkyl chain was either derived from lauric acid or from glycerol α-monolaurate.
The fourth term in equation (1) refers to all protein species that can be either derived from or converted into pi,c by chemical modification.
Science
Modulators of lipase enzyme including activators and inhibitors have been either derived from natural resources (plants/animals/microbes) or have been artificially synthesized.
It is likely that the illite was either derived from hydrothermal alteration, which may be a precursor to frictional melting (Magloughlin 1992), or from the alteration of the pseudotachylyte matrix.
Instead of completing each model step by step, any model element is either derived from early requirements or collected in the appropriate model before being propagated in the subsequent steps.
Expert writing Tips
Best practice
When using "are either derived from", ensure that the two (or more) potential sources are clearly identified to avoid ambiguity.
Common error
Avoid using "are either derived from" without specifying the potential sources, which can lead to confusion. Clearly state each possible origin.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "are either derived from" functions as a verbal phrase indicating the origin or source of something. As shown by Ludwig, it suggests that something originates from one of two or more possibilities.
Frequent in
Science
80%
Encyclopedias
8%
News & Media
4%
Less common in
Formal & Business
2%
Wiki
2%
Unknown/unmatched sources
4%
Ludwig's WRAP-UP
In summary, the phrase "are either derived from" is a grammatically correct and frequently used phrase, as confirmed by Ludwig. It serves the purpose of indicating that something originates from one of two or more possible sources, commonly used in scientific and academic writing. Ludwig's analysis indicates that while the phrase is versatile, it is best practice to clearly identify the potential sources to avoid ambiguity. Common errors involve vague source identification. Alternatives such as "are either sourced from" or "are either originating from" can be used to convey similar meanings with slight nuances.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
are either sourced from
Replaces "derived" with "sourced", emphasizing the point of origin.
are either originating from
Uses "originating" instead of "derived", highlighting the beginning point.
are either stemming from
Substitutes "derived" with "stemming", suggesting a causal relationship.
are either originating in
Focuses on location of origin rather than the derivation process.
are either drawn from
Uses "drawn" to imply extraction or selection from a source.
are either created from
Highlights the creation process from a source material.
are either extracted from
Emphasizes the removal or separation from a source.
are either developed from
Implies a process of evolution or refinement from an initial source.
are either formed from
Focuses on the composition or construction from constituent parts.
can be traced back to either
Expresses the origin as a traceable lineage, adding a sense of history.
FAQs
How do I use "are either derived from" in a sentence?
Use "are either derived from" to indicate that something originates from one of two or more possible sources. For example, "The data "are either derived from" surveys or experiments".
What's the difference between "are either derived from" and "are both derived from"?
"Are either derived from" indicates one of several possibilities as the source, while "are both derived from" specifies that both options contribute to the origin.
What can I say instead of "are either derived from"?
You can use alternatives like "are either sourced from", "are either originating from", or "are either stemming from" depending on the specific nuance you want to convey.
Is it more formal to say "are either derived from" or "come from either"?
"Are either derived from" is generally more formal and often used in academic or scientific writing, while "come from either" is more informal.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested