labrum

noun la·brum \ ˈlā-brəm \
Updated on: 30 Nov 2017

Definition of labrum

1 : an upper or anterior mouthpart of an arthropod consisting of a single median piece in front of or above the mandibles
2 : a ring of fibrous cartilage forming the margin of the shallow cavity of the upper part of the scapula by which the humerus articulates with the shoulder girdle

Recent Examples of labrum from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'labrum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of labrum

New Latin, from Latin, lip, edge — more at lip


Medical Dictionary

labrum

noun la·brum \ ˈlā-brəm \

medical Definition of labrum

plural labra play \-brə\
1 : an upper or anterior mouthpart of an arthropod consisting of a single median piece in front of or above the mandibles
2 : a fibrous ring of cartilage attached to the rim of a joint: as

Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

of or relating to dancing

Get Word of the Day daily email!

Test Your Vocabulary

Star Wars Words Quiz

  • cu-jedi-training
  • The bounty portion of bounty hunters (such as Boba Fett) comes from a Latin word meaning
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

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!