triradius

noun
tri·​ra·​di·​us | \ -ˈrād-ē-əs How to pronounce triradius (audio) \
plural triradii\ -​ē-​ˌī How to pronounce triradii (audio) \ also triradiuses

Medical Definition of triradius

: a group of ridges forming a Y at the base of each finger on the palm of the hand

Comments on triradius

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

WORD OF THE DAY

highly pertinent or appropriate

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
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!