The quality or state of being capable of being cured; the potential for recovery or remedy.
From curare (to cure) with Latin -able suffix plus -ity forming abstract nouns. The word evolved through medical contexts to describe whether diseases or conditions could be treated successfully.
Doctors in the 1500s had no idea about bacterial infections, so they debated endlessly about which diseases had 'curability.' Once antibiotics arrived, suddenly whole classes of previously incurable diseases became curable—showing how curability itself is a moving target based on scientific knowledge.
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