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
Therefore, using an enema as a first-line treatment for all types of constipation would be sort of like using an axe to cut a piece of cake.
—
Bruce Y. Lee, Forbes.com, 12 July 2025
Nikolaj Ehlers, Carolina Hurricanes Contract: $8.5 million x six years
There were only three first-line caliber forwards who changed teams this summer: Marner, JJ Peterka and Nikolaj Ehlers.
—Harman Dayal, New York Times, 11 July 2025
Our groundbreaking studies have challenged conventional wisdom about ADHD treatment, demonstrating that behavioral interventions should be the first-line approach, with medication considered secondarily if needed — an approach that proves both more effective and more cost-efficient.
—Miami Herald, 8 July 2025
Even most homeopathic practitioners support vaccination, and Faculty of Homeopathy explicitly recommends vaccines as first-line protection.
—Tim Ryan, MSNBC Newsweek, 4 July 2025
See All Example Sentences for first-line
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Bruce Y. Lee, Forbes.com, 12 July 2025
Nikolaj Ehlers, Carolina Hurricanes Contract: $8.5 million x six years
There were only three first-line caliber forwards who changed teams this summer: Marner, JJ Peterka and Nikolaj Ehlers.
—Harman Dayal, New York Times, 11 July 2025
Our groundbreaking studies have challenged conventional wisdom about ADHD treatment, demonstrating that behavioral interventions should be the first-line approach, with medication considered secondarily if needed — an approach that proves both more effective and more cost-efficient.
—Miami Herald, 8 July 2025
Even most homeopathic practitioners support vaccination, and Faculty of Homeopathy explicitly recommends vaccines as first-line protection.
—Tim Ryan, MSNBC Newsweek, 4 July 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 20 Jul. 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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