◙ adjective 1. [attrib.] outside;external • 外面的；外部的 »the outer door. 外面的门。 further from the centre or inside • 更加远离中心的；更加远离内部的 »the outer city bypass. 城市外环线。 (especially in place names) more remote • ［尤用于地名］更远的 »Outer Mongolia. 外蒙古。 objective or physical; not subjective • 客观外界的；物质的；非主观的 ◙ noun 1. an external or further out thing or part, in particular • 外部；远离部分，尤指 [Brit.] the division of a target furthest from the bullseye; a shot that strikes this • [英] （靶子的）外圈；外圈命中 [Brit.] an outer garment or part of one • [英] 外衣；穿在外面的服饰的一部分 »boots with stiff leather outers. 硬皮面的靴子。 [Brit.] a container in which packaged objects are placed for transport or display • [英] 货箱，转运箱 [Austral. informal] the part of a racecourse outside the enclosure • [澳，非正式] 跑马场围栏外部
【语源】
1. late Middle English: from out + -er, replacing earlier utter