柯林斯词典tubule /ˈtjuːbjuːl/ 1. N any small tubular structure, esp one in an animal, as in the kidney, testis, etc (動物腎髒、睾丸等內的)小琯結搆 返回 tubule剑桥词典a very small tube that forms part of a plant or animal （植物或動物的）小琯 返回 tubule