Gigayear
Definition, Meaning & Examples
Part of speech noun
Quick meaning: Gigayear is a noun meaning A billion years: a thousand million years, that is, a thousand thousand thousand years.
Meaning
A billion years: a thousand million years, that is, a thousand thousand thousand years.
Example Sentences
Holonyms: exasecond < zettasecond < yottasecond < ronnasecond < quettasecond
The fraction could be as high as 100% if the nuclear activity lasts much less than a gigayear.
It's hard to tell the difference between a 5-gigayear, 8-gigayear, and 10-gigayear cluster for such a sparse object as this unless you've got very high-quality photometry.
The illustrative example here provides for a few gigayear spread in ages of tracers of the stellar halo in a spiral (this is obviously sensitive to the chosen turnaround redshift) as found for the Milky Way field stars (Schuster & Nissen 1989) and globular clusters (reviewed by Bolte 1993).
Word Forms
- gigayears
Synonyms for gigayear
Depending on context, synonyms include giga-annum, gigaannum.
Related Words
Related dictionary entries include giga-annum, gigaannum, gigalightyear, gigabyte, gigameter, gigametre.
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Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
Dictionary data is provided by FreeDictionaryAPI.com and sourced from Wiktionary under its stated license.