| 单词 | retainer |
| 释义 | retainer retainer1 —retainership, n. /ri tay"neuhr/, n. 1. a person or thing that retains. 2. a servant or attendant who has served a family for many years. 3. Also called cage, separator. Mach. a ring separating, and moving with, balls or rollers in a bearing. 4. Orthodontics. a. a fixed or removable device worn in the mouth to hold the teeth in their new position during the adaptive period after straightening appliances have been removed. b. Prosthodontics. a part on a bridge or the like by which the bridge is attached to the natural teeth. [1530-40; RETAIN + -ER1] retainer2 /ri tay"neuhr/, n. 1. the act of retaining in one's service. 2. the fact of being so retained. 3. a fee paid to secure services, as of a lawyer. [1425-75; late ME reteinir, prob. n. use of MF retenir to RETAIN] |
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