Crossword Genius

Medical breakthrough (4)

Ross

I believe the answer is:

cure

'medical breakthrough' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for cure that I've seen before include "Heal or preserve" , "Make healthy, preserve" , "Make better - smoke" , "Remedy, therapy" , "Make well again" .)

I've seen this clue in The New York Times, the Universal, the Newsday and The Wall Street Journal.
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