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Flathead (1)
Flathead (2)
flathead
flathead catfish
flatiron
flatland
flatlander
flatlet
flatline
flatly
flatness problem
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flatline

flat·line [ flát ln ]


noun  (plural flat·lines)
Definition:
 
EEG or EKG reading: a monitor readout on an EEG or EKG indicating total cessation of brain or cardiac activity, respectively



intransitive verb  (past and past participle flat·lined, present participle flat·lin·ing, 3rd person present singular flat·lines)
Definition:
 
be in cardiac arrest: to show none of the electrical currents associated with heart or brain activity on a monitor ( slang )


flat·lin·er noun
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