instalment

英 [ɪnˈstɔːlmənt]

美 [ɪnˈstɔːlmənt]

n. (分期付款的)一期付款; (报章连载小说的)一节; (电视连续剧的)一集

复数：instalments　

Collins.1 / BNC.8067

牛津词典

noun

（分期付款的）一期付款
one of a number of payments that are made regularly over a period of time until sth has been paid for
1. We paid for the car by/in instalments .
  我们以分期付款买了这辆车。
2. The final instalment on the loan is due next week.
  贷款的最后一期付款下个星期到期。
3. They were unable to keep up (= continue to pay regularly) the instalments.
  他们未能继续按时交付这笔分期付款。
（报章连载小说的）一节；（电视连续剧的）一集
one of the parts of a story that appears regularly over a period of time in a newspaper, on television, etc.

in AM, use 美国英语用 installment

N-COUNT (分期付款的)一期付款
If you pay for something ininstalments, you pay small sums of money at regular intervals over a period of time, rather than paying the whole amount at once.
1. The first instalment of £1 per share is payable on application.
  每股1英镑的首期付款应在申请时交付。
2. ...the first month's interest instalment on the loan.
  贷款第一个月的利息还款
N-COUNT (故事、计划等的)部分;(分期出版的)分册
Aninstalmentof a story or plan is one of its parts that are published or carried out separately one after the other.
1. ...the disappointing third instalment of the Highlander series.
  “挑战者”系列令人失望的第三部

noun

the act of installing something (as equipment)
1. the telephone installation took only a few minutes
Synonym:installationinstallinginstallment
a part of a published serial
Synonym:installment
a part of a broadcast serial
Synonym:episodeinstallment