The quality, state, or capacity of being capable of becoming erect or rigid, often used in biological or medical contexts.
From 'erect' plus suffix '-ility' (Latin '-ilitas'), which transforms adjectives into abstract nouns describing qualities or states. This pattern creates formal medical and scientific terminology.
The '-ility' suffix is like Latin's formal suit and tie—it transforms a simple word into something that sounds scholarly enough for medical journals and anatomical textbooks.
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