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Bya

Bya logo #10101) Barely 2) Hang-thread link 3) Lead-in for nose or hair 4) Lead-in to nose or hair 5) Unit of time 6) Win-nose link 7) Words before nose or hair 8) Words with nose or hair
Found on https://www.crosswordclues.com/clue/bya

Bya

Bya logo #21000 In astronomy, geology, and paleontology, bya or `b.y.a.` is an initialism for billion years ago. This abbreviation is commonly{Fact|date=September 2008} used as a unit of time to denote length of time before the present. Specifically, one bya is equal to 109 years ago. The `billion` in bya is, by convention, the 109 `billion` of the short sc...
Found on http://en.wikipedia.org/wiki/Bya
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