: a lipoprotein of blood plasma that is composed of a high proportion of protein with little triglyceride and cholesterol and that is correlated with reduced risk of atherosclerosis : good cholesterol compare ldl

Word History

Etymology

high-density lipoprotein

First Known Use

1954, in the meaning defined above

Time Traveler
The first known use of HDL was in 1954

Dictionary Entries Near HDL

Cite this Entry

“HDL.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/HDL. Accessed 27 Jan. 2023.

Medical Definition

: a lipoprotein of blood plasma that is composed of a high proportion of protein with little triglyceride and cholesterol and that is associated with decreased probability of developing atherosclerosis

called also alpha-lipoprotein, good cholesterol, high-density lipoprotein

compare ldl, vldl
Love words? Need even more definitions?

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


The Great British Vocabulary Quiz

  • union jack speech bubble
  • Named after Sir Robert Peel, what are British police called?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?

PLAY