Crossword clues for About a billion years 3 lettersAnswerClueEONA billion yearsEONA billion years, in astronomyEONBillion-year stretchEONOne billion years, to an astronomerEONOne billion yearsEONBillion-year time periodEONThe Hadean one began 4.6 billion years agoEONA billion years, to geologistsEONBillion-year spanEONBillion years, easilyEONOne billion years, in astronomyEON1 billion yearsEONA billion years, to HubbleEONBillion-year periodEONOne billion years, officiallyEONBillion-year time spanEONPeriod of a billion yearsEONOne billion years to HubbleEONA billion years, in geologyAGE13.7 billion years, for our universeEONOne billion years, in geologic timeEONOne billion years, geologicallyEONThe first was the Hadean (~4 billion years ago)ONEWith 42 Down, geologist's billion yearsEON1 billion years, in astronomyEONBillion years, in astronomyEONOne billion years in ONE?MANProduct of three billion years.EONOne billion years, in geologyEST14 billion years, for the age of the universe: Abbr.EONThe Hadean was the first one, ending about 4 billion years agoEST4.5 billion years, for the age of the earth: Abbr.EONBillion yearsEONDivision of about one billion yearsEONAbout a billion yearsEONSBillions and billions of yearsEONSA billion years, geologicallyAEONSBillion-year spansAEONA billion years, in astronomyAEONBillion yearsEONSAt least two billion yearsEONSBillion-year periodsEONSBillion-year stretchesAEONBillion-year periodNEVEREVERNot in a million billion yearsEONSBillion-year spansAEONBillion years, to a geologistAEONBillion years (Var.)AEONOne billion yearsEONSBillion-year increments, in geology
