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Definitions from the Web

sagan

noun

1. A unit of measurement representing one billion (10⁹).
2. (astronomy) A large number equal to 4,294,967,296 (2³²).
3. (astronomy) A billion years.

Sample Sentences:

1. The national debt reaches trillions of sagans.
2. In computing, a sagan is often used as a representation of a large count.
3. The formation of galaxies takes many sagans.

Related Products:

Books about Sagan

Telescopes for Viewing Sagan's Universe