1. gearing with the thread of a worm. 
   带有螺纹线的传动装置。
2. a shaft with screw thread (the worm) meshes with a toothed wheel (the worm wheel); changes the direction of the axis of rotary motion. 
   螺纹杆与齿轮相啮合；改变轴旋转运动的方向。
3. Something, such as the thread of a screw or the spiral condenser in a still, that resembles a worm in form or appearance. 
   有螺纹状的物品某物，如螺旋线或蒸馏器的螺旋冷凝器，在构成或外表上像蠕虫
4. mulberry silk worm cocoon 
   桑蚕茧
5. Suggestive of a worm. 
   使人联想到虫的

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