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
as defined previously
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "as defined previously" is correct and usable in written English.
It can be used to refer back to a definition or explanation that was provided earlier in the text. Example: "The term 'sustainability' refers to practices that meet current needs without compromising future generations, as defined previously."
✓ Grammatically correct
Science
Alternative expressions(20)
as explained previously
as detailed previously
as described previously
as demonstrated previously
as documented previously
as mentioned earlier
as specified previously
as done previously
as reported previously
as established before
as recorded previously
as indicated earlier
as explained above
as identified previously
as characterized previously
as determined previously
as implemented previously
as revealed previously
as outlined previously
as indicated previously
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
60 human-written examples
where the variables are as defined previously.
where all the variables are same as defined previously.
Science
All data was annotated for events as defined previously.
Measurements were performed at the best and worst hemodynamic position, as defined previously.
These analyses were also performed looking only at severe injuries as defined previously.
Science
where Y, ι, (tilde {boldsymbol {G}}), X, Z, L and ν are as defined previously.
So choosing k 1 as defined previously negatively affects the performance.
As defined previously, actively tilting trains require some sort of device or component in other to initiate tilting.
Science
To investigate the effect of migration networks, we divide the Mexican states between those with high migration, as defined previously, and the rest.
Science
where t i is the i th line of the circular matrix of x, t ( x ), as defined previously in (2.3).
The spectrum sensing problem distinguishes between two mutually independent Gaussian sequences y k), under hypothesis H0 and H1 respectively, as defined previously in Equation 1.
Expert writing Tips
Best practice
When using "as defined previously", ensure that the previous definition is clear and easily accessible to the reader. Avoid ambiguity by providing a specific reference if the definition is lengthy or complex.
Common error
Avoid using "as defined previously" if the definition was provided much earlier in the text or in a different document. Readers may not remember the exact definition, so a brief restatement or a more explicit reference can improve clarity.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "as defined previously" functions as an adverbial phrase, modifying a verb or clause by indicating that a term or concept has been previously established. Ludwig AI shows its common use in academic and scientific writing to avoid repetition and maintain conciseness.
Frequent in
Science
100%
Less common in
News & Media
0%
Formal & Business
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "as defined previously" serves as a useful tool in academic and scientific writing to refer back to a previously established definition. It is grammatically correct and most commonly found in scientific literature. Ludwig AI confirms the phrase's usability. When employing this phrase, it's important to ensure that the previous definition is clear and accessible to the reader, preventing any ambiguity. Alternative phrases like "as previously defined" or "as mentioned earlier" can be used to add variety to your writing while maintaining clarity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
as previously defined
Word order is changed, placing "previously" before "defined" for emphasis.
as earlier defined
Replaces "previously" with "earlier" to denote a definition given at a prior point in the text.
as specified above
Uses "specified" instead of "defined", implying a more explicit and detailed presentation of the concept.
as noted before
Shifts the focus to a previously mentioned observation rather than a formal definition.
as indicated earlier
Highlights that the item was signaled or pointed out earlier in the text rather than being formally defined.
as mentioned previously
Emphasizes that the item was brought up in a prior statement without necessarily being strictly defined.
as established before
Implies that the concept was firmly set or proven at an earlier point in the text.
as explained above
Replaces "defined" with "explained", highlighting a prior elaboration or clarification of the concept.
as delineated earlier
Replaces "defined" with "delineated", indicating a more precise and detailed description was provided before.
as introduced previously
Emphasizes a prior presentation or unveiling of the item in the discourse, focusing on introduction rather than definition.
FAQs
How can I use "as defined previously" in a sentence?
You can use "as defined previously" to refer back to a term, concept, or variable that you've already explained. For example, "The experimental units were treated "as defined previously", ensuring consistency across the study".
What are some alternatives to "as defined previously"?
Alternatives include "as previously defined", "as mentioned earlier", or "as specified above", depending on the specific context and the nuance you wish to convey.
Is it better to restate a definition or use "as defined previously"?
It depends on the length and complexity of the definition and the context of your writing. If the definition is short and crucial for understanding, restating it might be better. If it's lengthy, using "as defined previously" is acceptable, but consider providing a page number or section reference.
When should I avoid using "as defined previously"?
Avoid using "as defined previously" if the definition is not easily accessible or if a significant amount of text has passed since the initial definition. In such cases, briefly restating the definition enhances clarity.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested