Able to be deducted or subtracted; capable of being removed or taken away logically or mathematically.
A rare or archaic form combining 'deduct' with the suffix '-ile' (meaning 'capable of' or 'tending to'). More common than '-ile' suffix forms in modern English are '-ible' or '-able,' so this represents an older word formation pattern.
This word is so rare that it barely appears in modern dictionaries, but it shows how English speakers once experimented with '-ile' endings (like 'ductile' for something that can be drawn/led)—we mostly abandoned this pattern for financial and logical contexts.
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