Worthy of or able to be cited or quoted; meeting standards for use as a reference or authority.
Derived from cite (from Latin citare, to summon/rouse) with the adjective suffix -able. The suffix -able means 'capable of' or 'worthy of,' creating a descriptor for citable sources.
Not everything on the internet is 'citable'—scientists and scholars have very specific rules about which sources are trustworthy enough to reference in official work, which is why Wikipedia won't fly in your research paper.
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