dia

abbreviation (1)

Definition of dia

 (Entry 1 of 3)

diameter

DIA

abbreviation (2)

Definition of DIA (Entry 2 of 3)

Defense Intelligence Agency

dia-

prefix
variants: or less commonly di-

Definition of dia- (Entry 3 of 3)

: through diapositive : across diadromous

History and Etymology for dia

Prefix

Latin, from Greek, through, apart, from dia; akin to Latin dis-

Keep scrolling for more

Keep scrolling for more

More Definitions for dia

Medical Definition of dia

1 diameter
2 diathermy

Comments on dia

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

WORD OF THE DAY

showing great care, attention, and effort

Get Word of the Day daily email!

Test Your Vocabulary

Finance Words Quiz

  • a-piggy-bank
  • The etymology of mortgage is related most closely to which two words?
True or False

Test your knowledge - and maybe learn something along the way.

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!