Crossword puzzle clue "365 billion days in astronomy"

Here are the possible solutions for 365 billion days in astronomy clue

Answer
Clue
Relevancy
eon
Clue
365 billion days, in astronomy
365 billion days, geologically
365 billion days, astronomically
365 billion days
One billion years, in astronomy
A billion years, in astronomy
Billion years, in astronomy
Definition
a long period of time, also AEON
aeon
Clue
A billion years, in astronomy (Var.)
Definition
the largest division of geological time, composed of several eras, also EON

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