[计] circumcircle ；
[例句] 他在这个圆之外画外接圆. He drew a circle around the points.
[医] aquula auditiva externa，epilymph，perilymph，perilympha ；
[例句] 本症须与内淋巴水肿、外淋巴瘘 、 腮腺炎耳聋、及积液性中耳炎等病症作?别诊断. Especially in hearing - handicapped children , endolymphatic hydrops plays a major causative role in acute hearing loss.
go overseas，abroad，go abroad；
[例句] 到国外工作存在许多陷阱。 The pitfalls of working abroad are numerous.
[例句] 他含糊其词地说了到国外工作的事. He had talked vaguely of going to work abroad.
[法] beyond seas，beyond the sea ；
[例句] 在海外工作对所有相关人员来说都应该是一段让人兴奋而愉快的经历。 Working abroad should be an exciting and positive experience for all concerned.
[例句] 在海外，法律问题更为繁复。 Overseas the legal issues are more muddied.
adscititious，[法] extra ；
[例句] 联机安全措施正被內置在系统中, 不是外加的. Online security is being built in to the system, not tagged on.
[例句] 这是外加的东西. This is sth. additional.
[医] adventitial ；
[例句] 血管周围细胞的营养不足,引起外膜的变性. Inadequate cell nutrition around vessels causes degeneration of tunica adventitia.
[例句] 假性动脉瘤一词用于只有一层动脉外膜的动脉瘤. A false aneurysm is the term applied when only the adventitia is present.
in the open，outdoors ；
[例句] 只有不到1,000只大熊猫仍然在野外生活。 Fewer than a thousand giant pandas still live in the wild.
[例句] 牛在野外吃草. Cows were grazing in the field.
alfresco，in the open air，without doors，out of doors ；
[例句] 除了最严寒的冬季，这种植物都能在户外生长。 The plant will stand all but the worst winters out of doors.
[例句] 在户外，蚊子和蠓虫永远让人不得安生。 Outdoors, mosquitoes and midges were a perpetual torment.
unprofessional，dilettante，strange，[法] lay，laic ；
[例句] 它不仅仅是职业外交家的教科书，里面的轶事趣闻外行的读者也会喜欢。 It is not just a textbook for professional diplomats. The lay reader will enjoy the anecdotes.
[例句] 在外行的眼光来看, 这篇文章很难通过. From a lay perspective, the article is difficult to get through.
denotative，[计] extensional，extension ；
[例句] 70年代是市场区分和产品线外延的年代. The 70 s became a decade of segmentation and line extension.
[例句] 对行政审批概念的理解不同,必然会导致行政审批内涵与外延的不同. Different concepts of AEA get rise to different intention and extension.
diplomatically ；
[例句] 几个世纪以来否决权一直是外交上惯用的手段。 The veto has been a traditional instrument of diplomacy for centuries.
[例句] 这将在外交上犯失礼的错误. This would be against diplomatic etiquette.
strange，[医] ecdemic，out-of-town ；
[例句] 那孩子说话的神态令那位来自外地的老师感到不舒服. The boy's manner of speech jarred on the teacher, who came from a different part of the country.
[例句] 那船是开往外地的. The ship is outward bound.
outboard，[医] lateral ；
[例句] 翻下来缝外侧的边。 Turn under and hem the outer edges.
[例句] 火车轮外侧的金属轮箱便压在这根铁轨上. Metal shoes outside the wheels of the train then press downwards on this rail.
ectoblast，ectoderm，epiblast，exoderm ；
[例句] 大多数禾本科胚有一片瓣 状 结构通常称为外胚叶. Most grass embryos have a flap - like structure known as the epiblast.
[例句] 目的: 研究少汗性外胚叶发育不全引起先天缺牙的ED1基因突变. Objective : To detect ED 1 gene mutation in three hypohidrotic ectodermal dysplasia ( HED ) nuclear families.
epimatrix ；
[例句] 结论可吸收性珊瑚羟基磷灰石具有促进骨髓基质细胞表达成骨细胞表型、合成细胞外基质的功能,是良好的细胞载体. Conclusion The absorbable coral hydroxyapatite is a good bone tissue engineering scaffold.
[例句] 结果:tgfβ在宫颈鳞癌细胞浆及细胞外基质中均可见表达. Results TGF � � 1 expression was found in both cytoplasm and extracellular stroma.
episperm，exosperm，testa ；
[例句] 皮肤过敏.只要离开这种环境,不再接触白果外种皮, 就可以恢复正常的. When you press exit, the screen return to normal video display of the far end.
[例句] 种阜:外种皮延伸所形成的结构,与假种皮相似但通常小于假种皮. Caruncle A fleshy outgrowth from a seed, similar to, but smaller than, an aril.
[医] excurvation，excurvature ；
[例句] 两端必须向外弯. The two ends must be bent outward.
[例句] 铁丝的两端须向外弯. The two ends of the wire must be bent outward ( s ).
exocentric ；
[例句] 他有一种活泼外向的幽默感，看上去大方自信。 He has a lively sense of humour and appears naturally confident.
[例句] 性格外向的人喜欢高谈阔论，而不愿思索人生的意义。 Extrovert prefer lively conversation to brood on the meaning of life.
exocoel，exocoele ；
[例句] 一般通过腰部通路进入硬膜外腔. The epidural space is usually identified via the lumbar approach.
[例句] 方法将药液自骶裂孔注入到硬膜外腔. Methods : To drip the liquid from sacral hiatus to epidural.
exogenous ；
[例句] 这是些工作中一出现问题就往往归诸外因的人。 These are people who tend to externalize blame when anything goes wrong at work.
[例句] 老年疾病通长都不是起于外因的. Disorders of old age are generally not exogenous.