first-line
adjective
: being the preferred, standard, or first choice
first-line treatment of tuberculosis
compare second-line
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
Until now, levodopa has been the standard first-line treatment for Parkinson’s patients.
—
Melissa Rudy, FOXNews.com, 18 Apr. 2025
These agents are considered first-line agents10 to reduce fluid volume; however, that depends on individual factors.
—Jessica Swirble, Verywell Health, 17 Apr. 2025
Last, for frontline and first-line leadership talent, your best source is referrals from your existing A-player employees.
—Verne Harnish, Forbes.com, 16 Apr. 2025
Stimulant drugs like methylphenidate (Ritalin, Concerta) that are designed to improve attention are first-line treatments for ADHD.
—New Atlas, 14 Apr. 2025
See All Example Sentences for first-line
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Melissa Rudy, FOXNews.com, 18 Apr. 2025
These agents are considered first-line agents10 to reduce fluid volume; however, that depends on individual factors.
—Jessica Swirble, Verywell Health, 17 Apr. 2025
Last, for frontline and first-line leadership talent, your best source is referrals from your existing A-player employees.
—Verne Harnish, Forbes.com, 16 Apr. 2025
Stimulant drugs like methylphenidate (Ritalin, Concerta) that are designed to improve attention are first-line treatments for ADHD.
—New Atlas, 14 Apr. 2025
See All Example Sentences for first-line
Cite this Entry
“First-line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/first-line. Accessed 29 Apr. 2025.
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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