open-label

adjective
open-la·​bel | \ ˌō-pən-ˈlā-bəl How to pronounce open-label (audio) \

Definition of open-label

: being or relating to a clinical trial in which the treatment given to each subject is not concealed from either the researchers or the subject an open-label multicenter study — compare double-blind, single-blind

First Known Use of open-label

1979, in the meaning defined above

Keep scrolling for more

Learn More about open-label

Statistics for open-label

Look-up Popularity

Time Traveler for open-label

The first known use of open-label was in 1979

See more words from the same year

Keep scrolling for more

More Definitions for open-label

open-label

adjective

Medical Definition of open-label

: being or relating to a clinical trial in which the treatment given to each subject is not concealed from either the researchers or the subject long-term open-label studies — compare double-blind, single-blind

Comments on open-label

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

WORD OF THE DAY

a strong desire or propensity

Get Word of the Day daily email!

Test Your Vocabulary

Challenging Vocabulary Quiz Returns!

  • stylized drawing of woman pole vaulting across gap to get trophy
  • Which is a synonym of fuliginous?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

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!