Definition of deci-

: one tenth part of decimeter

History and Etymology for deci-

French déci-, from Latin decimus tenth, from decem ten — more at ten

Keep scrolling for more

Keep scrolling for more

More Definitions for deci-

deci-

prefix

Kids Definition of deci-

: tenth part decimeter

More from Merriam-Webster on deci-

Britannica.com: Encyclopedia article about deci-

Comments on deci-

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

WORD OF THE DAY

to speak slightingly about or to degrade

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!