Capable of being examined, tested, or investigated; able to withstand scrutiny.
From examine + -able suffix (capable of being). The -able suffix converts verbs into adjectives describing what can be done to the thing.
The -able suffix is one of English's most powerful tools—you can slap it on almost any verb and instantly create an adjective saying 'this thing can have that action done to it,' which is why English speakers love it for making new words!
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