Synonyms for megayear

Most common

mega-annum

All synonyms

Noun

Definitions

1. n. 1

   A million years: a thousand thousand years.

   Holonyms: petasecond < giga-annum, gigayear < exasecond < zettasecond < yottasecond < ronnasecond < quettasecond

Forms

Plural

megayears → mega-annums, millionenniums…

By length

13 letters

millionennium