orbital index

noun

Medical Definition of orbital index 

: the ratio of the greatest height of the orbital cavity to its greatest width multiplied by 100 where the width is measured from the dacryon to the farthest point on the opposite border and the height is measured along a line perpendicular to the width — see hypsiconch, mesoconch

Learn More about orbital index

Share orbital index

Comments on orbital index

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

WORD OF THE DAY

marked by shyness and lack of polish

Get Word of the Day daily email!

Test Your Vocabulary

Liar, Liar Quiz

  • alt-5761dbe2ba986
  • Someone who pretends to be sick in order to avoid work is a:
Name That Thing

Test your visual vocabulary with our 10-question challenge!

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!