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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
blind passage
Grammar usage guide and real-world examplesUSAGE SUMMARY
"blind passage" is correct and usable in written English.
You can use it when referring to a passage or route that is not visible to the eye, either because it's hidden or because it's too narrow or dark to see. For example, "She followed the blind passage, feeling her way through the darkness until she came to a small clearing."
✓ Grammatically correct
Science
News & Media
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
27 human-written examples
Previously, by blind passage, a vvIBDV Gx strain was attenuated to the Gt strain, and a strain CEF-9 with intermediate characters was obtained during attenuation.
Science
However, the traditional method of vaccine development with blind passage could not fit the style of the emergency prevention of IBDV.
Science
Limitations and complications of the ILMA may include aspiration, esophageal intubation, damage to the larynx or other tissues during blind passage of a tracheal tube, and edema of the epiglottis.
Our prototype RepliVAX JE replicated poorly in cells, but blind passage produced a better-growing derivative, and analyses of this derivative allowed us to engineer a second-generation RepliVAX (RepliVAX JE.2) that grew to high titers.
Science
Irradiated specimens were tested for infectivity by inoculation onto Vero E6 cells, and examined for cytopathogenic effects for 10 days, followed by blind passage of the cells and testing for the growth of SARS-CoV by PCR [29].
Science
The above infection/harvest process (blind passage) was repeated for 3-4 times for viral packaging.
Human-verified similar examples from authoritative sources
Similar Expressions
33 human-written examples
The blind passages make it likely that sperm will be ejaculated into the wrong place and thus fail to fertilise the duck's eggs.
News & Media
We were not able to detect the virus replication, neither by plaque assay on BHK-21 cells nor in blind passages in BHK-21 cells, (data not shown).
Science
Modified Vaccinia virus Ankara (MVA) is a replication-deficient attenuated poxvirus that was derived from Vaccinia virus by Mayr et al. through more than 500 blind passages in chick embryo fibroblast (CEF) cell culture [1].
Science
FMDV was considered extinct when no virus infectivity and no viral RNA that could be amplified by a highly sensitive RT-PCR protocol, could be demonstrated neither in the supernatant of the passage that harbors the putatively extinguished virus, nor after 3 blind passages in BHK-21 cells, in the absence of any drug.
Science
To determine if virus was produced even though no virus was detected by plaque assay on BKH-21 cells, supernatants of D5 CD172+ cells infected with FMDV were harvested at different time points (6, 24 and 48 hpi) and were subjected to two blind passages in BHK-21 cells.
Science
Expert writing Tips
Best practice
When describing medical or scientific procedures, use "blind passage" to accurately convey that a tube or instrument is inserted without direct visualization.
Common error
Ensure the context clearly indicates whether "blind passage" refers to a physical route or a process without visual guidance. Ambiguity can confuse the reader.
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "blind passage" functions as a noun phrase, often serving as a subject or object in sentences describing a process or route lacking direct visibility. Ludwig AI confirms its usability in written English.
Frequent in
Science
75%
News & Media
25%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "blind passage" is a grammatically correct and commonly used term, as affirmed by Ludwig AI. It typically refers to a route, process, or technique conducted without direct visual guidance. While frequently found in scientific literature describing laboratory procedures or medical contexts involving instrument insertion, it can also appear in news reports or general discussions. When using "blind passage", ensure clarity regarding whether it describes a physical route or a procedural step. Consider alternatives such as "unseen route" or "hidden pathway" for broader audiences. Overall, understanding the context is key to using "blind passage" effectively.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
unseen route
This alternative emphasizes the lack of visibility along the route.
hidden pathway
This suggests a route that is deliberately concealed or not easily found.
obscure course
This alternative indicates a route that is unclear or not well-defined.
undetectable access
This highlights the difficulty in noticing or discovering the means of entry.
unnavigable way
This suggests a route that is difficult or impossible to travel through.
unmarked path
This indicates a route without any signs or indicators to follow.
veiled passage
This implies that the passage is concealed or obscured in some way.
covert channel
This term denotes a secret or concealed means of communication or access.
secret route
This alternative directly states that the route is not meant to be known to everyone.
surreptitious entry
This emphasizes the secretive and unauthorized nature of the entrance.
FAQs
How is "blind passage" typically used in scientific writing?
In scientific writing, "blind passage" often describes a laboratory technique involving serial passaging of a virus or other biological material in cell culture, even when no obvious cytopathic effect is initially observed.
What are some potential complications associated with a literal "blind passage" in a medical context?
In medical procedures, a literal "blind passage", such as inserting a tracheal tube without direct visualization, carries risks of airway trauma, esophageal intubation, or other complications.
What's a less technical way to describe a "blind passage"?
Depending on the context, you could use phrases like "unseen route", "hidden pathway", or "obscure course" as alternatives to "blind passage". These options may be more suitable for general audiences.
When is it appropriate to use the term "blind passage" instead of other alternatives?
The term "blind passage" is particularly appropriate in scientific or medical contexts where precision is necessary to convey the specific technique or procedure being described. In less formal settings, alternatives like "unseen route" may be more suitable.
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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