flare-up
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flare–up

noun \-ˌəp\

Definition of FLARE-UP

1
: a sudden outburst or intensification
2
: a sudden bursting (as of a smoldering fire) into flame or light
3
: a sudden outburst of or increase in the symptoms of a disease or condition

First Known Use of FLARE-UP

1839

flare–up

noun \-ˌəp\   (Medical Dictionary)

Medical Definition of FLARE–UP

: a sudden appearance or worsening of the symptoms of a disease or condition <an asthmatic flare–up>

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