Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

exa-

combining form

Definition of exa-

  1. :  quintillion (1018) <exajoule>



Origin of exa-

International Scientific Vocabulary, modification of Greek hexa- hexa-


Learn More about exa-


Seen and Heard

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

WORD OF THE DAY

the range of perception or understanding

Get Word of the Day daily email!