fin是什么意思,fin怎么背,怎么记,fin的词根词缀巧记速记方法,fin构词,构成,中文翻译_英语词典

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fin fin
/ fin /

◙ noun
1. a flattened appendage on various parts of the body of many aquatic vertebrates, including fish and cetaceans, and some invertebrates, used for propelling, steering, and balancing
• 鳍；鳍状物
  an underwater swimmer's flipper
• （潜水者的）脚蹼
  a small flattened projecting surface or attachment on an aircraft, rocket, or motor car, for providing aerodynamic stability
• （飞机、火箭、机动车的）尾翼；鳍状稳定板
  a flattened projection on a device, used for increasing heat transfer
• 散热片
◙ (finned, finning)
1. [no obj., with adverbial of direction] swim under water by means of flippers
• （穿着脚蹼）在水下游泳
»I finned madly for the surface.
  我拼命划动脚蹼想要浮出水面。

【派生】

♦ finless adjective
♦ finned adjective
»[in combination] primitive ray-finned fishes.
长着射线状鳍的原始鱼类。

【语源】

1. Old English finn, fin, of Germanic origin; related to Dutch vin and probably ultimately to Latin pinna 'feather, wing'

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