Answer: NERVA
NERVA is a crossword puzzle answer that we have spotted 4 times. There are related answers (shown below). Try defining NERVA with Google.
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Recent usage in crossword puzzles:
- New York Times - Aug. 13, 1988
- New York Times - Dec. 21, 1980
- New York Times - Dec. 24, 1978
- New York Times - June 3, 1953