second-line

adjective
sec·​ond-line | \ ˈse-kᵊn(d)-ˈlīn How to pronounce second-line (audio) \

Definition of second-line

: not being the usual or preferred choice second-line drugs to treat tuberculosis — compare first-line

First Known Use of second-line

1969, in the meaning defined above

Keep scrolling for more

Learn More about second-line

Statistics for second-line

Look-up Popularity

Time Traveler for second-line

The first known use of second-line was in 1969

See more words from the same year

Keep scrolling for more

More Definitions for second-line

second-line

adjective
sec·​ond-line | \ ˌsek-ᵊn(d)-ˌlīn How to pronounce second-line (audio) \

Medical Definition of second-line

: being or using a drug that is not the usual or preferred choice — compare first-line

More from Merriam-Webster on second-line

Rhyming Dictionary: Words that rhyme with second-line

Comments on second-line

What made you want to look up second-line? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

showing courage and determination

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!