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Going forward; advancing; denoting the course of a disease, especially, when unqualified, an unfavorable course.
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pro·gres·sive prə-'gres-iv adj increasing in extent or severity <a \progressive disease>
pro·gres·sive·ly adv
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pro·gres·sive (pro-gresґiv) advancing; going forward; going from bad to worse; increasing in scope or severity.Medical dictionary. 2011.