1.1 (as noun a Rosetta stone) A key to some previously undecipherable mystery or unattainable knowledge: zero point energy could be the Rosetta stone of physics
More example sentences
- If there is a Rosetta stone for deciphering Edwards' bold decision to seek the presidency and abandon the Senate after a single term on Capitol Hill, it is embedded in the way he has reacted to his son's death.
- The similar values may be a Rosetta stone that will serve to allow a common language to emerge regardless of where either group is, or is perceived to be, on the political spectrum.
- It was a Rosetta stone that I would continually go back to when multiple issues from disparate groups clamored for priority.
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