The quality or degree to which something can be detected, found, or discovered.
From 'detect' (Latin detectus, past participle of detegere: de- 'uncovering' + tegere 'to cover') plus -ability (suffix forming nouns of quality). The suffix -ability makes abstract qualities from adjectives.
Detectability is crucial in science and medicine—doctors measure how detectable diseases are in blood tests, and astronomers discuss the detectability of distant exoplanets. Measurable visibility is a superpower!
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