quadratus lumborum

noun
quadratus lum·​bor·​um | \ -ləm-ˈbȯr-əm How to pronounce quadratus lumborum (audio) \

Medical Definition of quadratus lumborum

: a quadrilateral-shaped muscle of the abdomen that arises from the iliac crest and the iliolumbar ligament, inserts into the lowest rib and the upper four lumbar vertebrae, and functions especially to flex the trunk laterally

Comments on quadratus lumborum

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

WORD OF THE DAY

transposition of initial sounds of words

Get Word of the Day daily email!

Test Your Vocabulary

Word Puzzles

  • alt 57589b2b4c6a3
  • Which answer pairs best with each of the following words? living, estate, club, music, road, mile
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

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!