— deductibility , n.
/di duk"teuh beuhl/ , adj.
1. capable of being deducted.
2. allowable as a tax deduction: Charitable contributions are deductible expenses.
n.
3. the amount for which the insured is liable on each loss, injury, etc., before an insurance company will make payment: The deductible on our medical coverage has been raised from $50 to $100 per illness.
[ 1855-60; DEDUCT + -IBLE ]