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

checksum

play
noun check·sum \ˈchek-ˌsəm\

Definition of checksum

  1. :  a sum derived from the bits of a segment of computer data that is calculated before and after transmission or storage to assure that the data is free from errors or tampering



1940

First Known Use of checksum

1940


Learn More about checksum


Seen and Heard

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

WORD OF THE DAY

February 12, 2016

of, relating to, or suggestive of marble

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image33683556

How much does a batman (the Turkish unit of measurement) weigh?

100 pounds 16.96 pounds 2.2 pounds 196.5 pounds
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ