Answer | Crossword Clue |
---|---|
MAN | Product of three billion years. |
EON | Division of about one billion years |
AEON | One spelling of a billion years |
aeons | unit of geologic time equal to one billion years |
eons | unit of geologic time equal to one billion years |
universes | All existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago |