of unknown etiology

USAGE SUMMARY

The phrase "of unknown etiology" is correct and usable in written English.
It is typically used in medical or scientific contexts to describe a condition or disease whose cause is not known. Example: "The patient presented with symptoms of a rare illness of unknown etiology, prompting further investigation."

✓ Grammatically correct

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

The US military later issued a death certificate, seen by the Guardian, citing the cause of death as "cardiac arrest of unknown etiology".

The Guardian

Fibromyalgia is a multifactorial disease of unknown etiology.

The Journal of Headache and Pain

To identify risk factors for infantile cataracts of unknown etiology.

Ophthalmology

Lichen planus is an inflammatory skin disorder of unknown etiology.

Journal of the Saudi Society of Dermatology & Dermatologic Surgery

Cancer is a complicated disease of unknown etiology.

Revista Colombiana de Cancerología

Behçet disease (BD) is a chronic multisystem disorder characterized by relapsing inflammation of unknown etiology.

Journal of Ophthalmic Inflammation and Infection

Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive, fibrosing interstitial lung disease of unknown etiology.

Clinical and Translational Medicine

Patients with new onset of heart failure syndrome of unknown etiology [16, 43].

Insights into Imaging

Sarcoidosis is a multisystem inflammatory disease of unknown etiology affecting multiple organs.

Journal of Ophthalmic Inflammation and Infection

Multifocal chorioretinal lesions of unknown etiology can present as a diagnostic and therapeutic dilemma.

Journal of Ophthalmic Inflammation and Infection

Granulomatosis with polyangiitis is a rare, potentially life-threatening primary systemic vasculitis of unknown etiology.

Journal of Ophthalmic Inflammation and Infection

Expert writing Tips

Best practice

When using "of unknown etiology", ensure the context is appropriate for its formal and often medical usage. In general writing, consider simpler alternatives like "of unknown cause".

Common error

Avoid using "of unknown etiology" in everyday language. This phrase is suited for formal, scientific, or medical writing. In casual contexts, simpler phrases such as "of unknown cause" or "with no known reason" are more appropriate.

Linguistic Context

The phrase "of unknown etiology" primarily functions as a post-modifier, typically describing a noun like "disease", "condition", or "illness". It indicates that the cause of the mentioned noun is not yet established. As Ludwig AI points out, it is often used in scientific and medical contexts.

Expression frequency: Very common

Frequent in

Science

95%

News & Media

3%

Wiki

2%

Less common in

Formal & Business

0%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "of unknown etiology" is a grammatically correct phrase commonly used in scientific and medical contexts to describe conditions or diseases where the cause is not yet known. As indicated by Ludwig, it's more suitable for formal writing than everyday conversation, where simpler alternatives may be more appropriate. The phrase appears frequently in scientific literature, and is relatively uncommon in news and media. When using this phrase, ensure that the context justifies its formality and precision.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

of undetermined etiology

Replaces "unknown" with "undetermined", implying a cause not yet firmly established.

of unspecified etiology

Substitutes "unknown" with "unspecified", indicating a cause not explicitly identified.

of unidentified etiology

Uses "unidentified" instead of "unknown", suggesting the cause has not been discovered.

of uncertain etiology

Replaces "unknown" with "uncertain", highlighting doubt about the cause.

of indeterminate etiology

Employs "indeterminate" in place of "unknown", suggesting the cause cannot be precisely determined.

of unknown cause

Uses the more general term "cause" instead of the medical term "etiology".

with no known cause

Rephrases the idea to emphasize the absence of a recognized cause.

with an obscure origin

Shifts the focus to the origin of the condition, rather than its direct cause.

arising from an unclear source

Highlights the lack of clarity regarding the source or starting point of the condition.

stemming from an unestablished basis

Emphasizes that there isn't any proven basis for the condition.

FAQs

What does "of unknown etiology" mean?

It means that the cause of a disease or condition is not yet known or understood.

What can I say instead of "of unknown etiology"?

You can use alternatives like "of undetermined etiology", "of unspecified etiology", or "of unknown cause" depending on the formality of the context.

Is it appropriate to use "of unknown etiology" in everyday conversation?

While grammatically correct, "of unknown etiology" is highly formal and typically reserved for medical or scientific contexts. Simpler phrases are generally preferred in everyday conversation.

How does "of unknown etiology" differ from "idiopathic"?

"Idiopathic" also means of unknown cause or origin, but it is most commonly used to describe diseases. "Of unknown etiology" is a more general phrase applicable to various conditions or phenomena, not exclusively diseases. The term "idiopathic" is also more specific to medical contexts.