Someone who participates in something for a certain number of weeks.(noun)
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Use "weeker" in a sentence
"Princton's league schedule is much much weeker than Maryland (for example) and Maryland may not make it but Princeton by virtue of a league championship will qualify."
"By the time I come into the hospital the next day, the twenty-four weeker has already died."
"The attending and the other resident coded the twenty-four weeker for more than six hours before they finally called it."