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
Get your ground truth from data, facts, and first-line supervisors.
—
George Bradt, Forbes.com, 26 May 2025
Reinhart, a first-line forward, has four goals and seven assists in the playoffs this year.
—Adam Lichtenstein, Sun Sentinel, 24 May 2025
Metformin, a drug used as a first-line treatment for type 2 diabetes, has been associated with a 30% lower risk of death, according to a new study.
—New Atlas, 24 May 2025
The 2026 free agent class outshines 2025’s two first-line caliber players with five — Kyle Connor and Adrian Kempe, who should make eight figures on their next deals, along with Artemi Panarin, Martin Necas and Alex Tuch.
—Shayna Goldman, New York Times, 22 May 2025
See All Example Sentences for first-line
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
George Bradt, Forbes.com, 26 May 2025
Reinhart, a first-line forward, has four goals and seven assists in the playoffs this year.
—Adam Lichtenstein, Sun Sentinel, 24 May 2025
Metformin, a drug used as a first-line treatment for type 2 diabetes, has been associated with a 30% lower risk of death, according to a new study.
—New Atlas, 24 May 2025
The 2026 free agent class outshines 2025’s two first-line caliber players with five — Kyle Connor and Adrian Kempe, who should make eight figures on their next deals, along with Artemi Panarin, Martin Necas and Alex Tuch.
—Shayna Goldman, New York Times, 22 May 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 30 May. 2025.
Copy CitationMedical Definition
first-line
adjective
: being the preferred, standard, or first choice
first-line treatment of advanced breast cancer
compare second-line
Love words? Need even more definitions?
Merriam-Webster unabridged
Share