Definition of "relapsing" [re•laps•ing]

• Relapse (noun)
• Present participle of relapse. (verb)

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• "There are different types of -- that we call the relapsing remitting then the secondary progressive where there is an ongoing weakness or a progression of symptoms."
• ""And when you did come, there was I scowling away the very individual you wished to see," said Blanche, again relapsing into one of her laughing fits."
• "The worst form of it is something known as relapsing MS."