first-line
adjective
: being the preferred, standard, or first choice
first-line treatment of tuberculosis
compare second-line
Synonyms
Examples of first-line in a Sentence
surgery is usually not considered a first-line treatment for this type of cancer
Recent Examples on the Web
The steering committee is informed by the working group, consisting of leaders from several groups: first-line defense, second-line defense, third-line or internal audit, technology, data, operational risk, info security, compliance and data privacy.
—
Balmukund Shukla, Forbes, 9 Sep. 2024
Instead, providers should use the other first-line antibiotic medications, rifampin and ceftriaxone, as prophylactic treatment.
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Meningitis is a rare but serious condition that can cause brain swelling or blood and joint infections.
—Theresa Gaffney, STAT, 15 Aug. 2024
Clomid and letrozole are the first-line fertility treatments for people with PCOS.
—Rachel Gurevich, Parents, 30 July 2024
While beta-blockers used to be a first-line treatment for hypertension, their role has changed in recent years.
—Ayesha Gulzar, Verywell Health, 18 July 2024
See all Example Sentences for first-line 
Balmukund Shukla, Forbes, 9 Sep. 2024
Instead, providers should use the other first-line antibiotic medications, rifampin and ceftriaxone, as prophylactic treatment.
advertisement
Meningitis is a rare but serious condition that can cause brain swelling or blood and joint infections.
—Theresa Gaffney, STAT, 15 Aug. 2024
Clomid and letrozole are the first-line fertility treatments for people with PCOS.
—Rachel Gurevich, Parents, 30 July 2024
While beta-blockers used to be a first-line treatment for hypertension, their role has changed in recent years.
—Ayesha Gulzar, Verywell Health, 18 July 2024
See all Example Sentences for first-line
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'first-line.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near first-line
Cite this Entry
“First-line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/first-line. Accessed 19 Sep. 2024.
Copy CitationMedical Definition
first-line
adjective
: being the preferred, standard, or first choice
first-line treatment of advanced breast cancer
compare second-line
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