[countable] (NAmE)
(Insurance 保险) a fixed charge that you must pay before an insurance company will pay the costs of sth
保险扣除额；免赔额；自负额（保险理赔之前，投保人自己需要负担的费用）◆Medicare will cover half of the drug costs after a $600 deductible is paid.
投保人支付了 600 元的保险扣除额後，医疗保险将支付一半的药费。 SYN excess (BrE)